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Crash while deleting referenced entity type #1242

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Crash while deleting referenced entity type#1242

Description

@loganmcbroom
loganmcbroom
opened on Aug 19, 2026

Deleting an entity from the project entities tab (not an instance of an entity within a level) while another entity stores a reference to an entity of that type within a level causes a crash.

Stack:

LDtk version: 1.5.3-64bits
Cannot read properties of undefined (reading 'width')
TypeError
TypeError: Cannot read properties of undefined (reading 'width')
    at display_FieldInstanceRender.renderField (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:68946:119)
    at display_FieldInstanceRender.renderFields (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:66707:40)
    at display_EntityRender.renderFields (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:65069:31)
    at display_EntityRender.renderAll (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:65040:8)
    at new display_EntityRender (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:64597:7)
    at display_LayerRender.render (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:70412:29)
    at display_LevelRender.renderLayer (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:79943:7)
    at display_LevelRender.updateInvalidations (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:80706:11)
    at display_LevelRender.postUpdate (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:81153:8)
    at dn_Process._doPostUpdate (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:495:4)

Processes:

#0 App
 |--- #4 page.Editor
       |--- #5 misc.FileWatcher
       |--- #6 display.WorldRender
       |--- #7 display.LevelRender
       |--- #8 display.Camera
       |--- #9 display.Rulers[--]
       |--- #10 tool.SelectionTool[--]
       |--- #11 tool.lt.DoNothing[--]
       |--- #12 WorldTool
       |--- #13 tool.PanView[--]
       |--- #14 tool.lt.IntGridTool [PAUSED][--]
       |--- #98 tool.lt.EntityTool[--]
       |--- #2533 tool.lt.TileTool [PAUSED][--]
       |--- #5772 tool.lt.TileTool [PAUSED][--]
       |--- #9140 display.EntityRender
       |--- #9141 display.EntityRender
       |--- #9142 display.EntityRender
       |--- #9143 display.EntityRender
       |--- #9144 display.EntityRender
       |--- #9145 display.EntityRender
       |--- #9146 display.EntityRender
       |--- #9147 display.EntityRender
       |--- #9148 display.EntityRender
       |--- #9149 display.EntityRender
       |--- #9150 display.EntityRender
       |--- #9151 display.EntityRender
       |--- #9152 display.EntityRender
       |--- #9153 display.EntityRender
       |--- #9154 display.EntityRender
       |--- #9155 display.EntityRender
       |--- #9156 display.EntityRender
       |--- #9157 display.EntityRender
       |--- #9158 display.EntityRender
       |--- #9159 display.EntityRender
       |--- #9160 display.EntityRender
       |--- #9161 display.EntityRender
       |--- #9162 display.EntityRender
       |--- #9163 display.EntityRender
       |--- #9164 display.EntityRender
       |--- #9165 display.EntityRender
       |--- #9166 display.EntityRender
       |--- #9167 display.EntityRender
       |--- #9168 display.EntityRender
       |--- #9178 ui.modal.panel.EditEntityDefs
       |--- #9183 ui.modal.dialog.Confirm
       |--- #9184 ui.LastChance
       |--- #9185 display.EntityRender
       |--- #9186 display.EntityRender
       |--- #9187 display.EntityRender
       |--- #9188 display.EntityRender
       |--- #9189 display.EntityRender
       |--- #9190 display.EntityRender
       |--- #9191 display.EntityRender
       |--- #9192 display.EntityRender
       |--- #9193 display.EntityRender
       |--- #9194 display.EntityRender
       |--- #9195 display.EntityRender
       |--- #9196 display.EntityRender
       |--- #9197 display.EntityRender
       |--- #9198 display.EntityRender
       |--- #9199 display.EntityRender
       |--- #9200 display.EntityRender
       |--- #9201 display.EntityRender
       |--- #9202 display.EntityRender
       |--- #9203 display.EntityRender
       |--- #9204 display.EntityRender
       |--- #9205 display.EntityRender
       |--- #9206 display.EntityRender
       |--- #9207 display.EntityRender
       |--- #9208 display.EntityRender
       |--- #9209 display.EntityRender
       |--- #9210 display.EntityRender

Log:

[GENERAL]      Progress created.
[RENDER]       Rendering world bg...
[GENERAL]      Progress started: : "Saving main file...", 2 operation(s)
[SAVE]           Preparing SavingData...
[SAVE]           Writing C:/Users/Logan/Documents/Source/game/assets/levels/test_world_40x22.ldtk...
[GENERAL]      Progress completed: "Saving main file..." (0s)
[FILE]         Emptying dir C:/Users/Logan/Documents/Source/game/assets/levels/test_world_40x22 (onlyExts=[ldtkl])...
[SAVE]         => Done...
[SAVE]         Saving complete (test_world_40x22.ldtk)
[FILE]         Saved "test_world_40x22.ldtk".
[EVENT]        ProjectSaved
[RENDER]       Rendering world bg...
[RENDER]       Rendering world bg...
[RENDER]       Rendering world bg...
[RENDER]       Rendering world bg...
[USERACTION]   Opened panel #9178 ui.modal.panel.EditEntityDefs
[FILE]         Reading HTML template editEntityDefs from cache
[FILE]         Reading HTML template fieldDefsForm from cache
[FILE]         Reading HTML template pivotEditor from cache
[RENDER]       Rendering world bg...
[RENDER]       Rendering world bg...
[RENDER]       Rendering world bg...
[RENDER]       Rendering world bg...
[RENDER]       Rendering world bg...
[RENDER]       Rendering world bg...
[WARNING]      Last chance for: Entity ToggleTile deleted
[TIDY]         Removed lost entity in LayerInst#18 "Objects" [Entities]
[TIDY]         Removed lost entity in LayerInst#18 "Objects" [Entities]
[TIDY]         Removed lost entity in LayerInst#18 "Objects" [Entities]
[EVENT]        EntityDefRemoved
[EVENT]        LevelJsonCacheInvalidated
[EVENT]        LevelJsonCacheInvalidated
[EVENT]        LevelJsonCacheInvalidated
[EVENT]        LevelJsonCacheInvalidated
[EVENT]        LevelJsonCacheInvalidated
[EVENT]        LevelJsonCacheInvalidated
[EVENT]        LevelJsonCacheInvalidated
[EVENT]        LevelJsonCacheInvalidated
[EVENT]        LevelJsonCacheInvalidated
[EVENT]        LevelJsonCacheInvalidated
[FILE]         Reading HTML template pivotEditor from cache
[FILE]         Reading HTML template pivotEditor from cache
[GENERAL]      Page started: page.CrashReport()
[FILE]         Loading page template: crashReport from C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/tpl/pages/crashReport.html
[ERROR]        Cannot read properties of undefined (reading 'width') (TypeError)
[ERROR]        TypeError: Cannot read properties of undefined (reading 'width')
    at display_FieldInstanceRender.renderField (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:68946:119)
    at display_FieldInstanceRender.renderFields (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:66707:40)
    at display_EntityRender.renderFields (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:65069:31)
    at display_EntityRender.renderAll (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:65040:8)
    at new display_EntityRender (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:64597:7)
    at display_LayerRender.render (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:70412:29)
    at display_LevelRender.renderLayer (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:79943:7)
    at display_LevelRender.updateInvalidations (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:80706:11)
    at display_LevelRender.postUpdate (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:81153:8)
    at dn_Process._doPostUpdate (file:///C:/Users/Logan/AppData/Local/Programs/ldtk/resources/app.asar/assets/js/renderer.js:495:4)

[GENERAL]      
#0 App
 |--- #4 page.Editor
       |--- #5 misc.FileWatcher
       |--- #6 display.WorldRender
       |--- #7 display.LevelRender
       |--- #8 display.Camera
       |--- #9 display.Rulers[--]
       |--- #10 tool.SelectionTool[--]
       |--- #11 tool.lt.DoNothing[--]
       |--- #12 WorldTool
       |--- #13 tool.PanView[--]
       |--- #14 tool.lt.IntGridTool [PAUSED][--]
       |--- #98 tool.lt.EntityTool[--]
       |--- #2533 tool.lt.TileTool [PAUSED][--]
       |--- #5772 tool.lt.TileTool [PAUSED][--]
       |--- #9140 display.EntityRender
       |--- #9141 display.EntityRender
       |--- #9142 display.EntityRender
       |--- #9143 display.EntityRender
       |--- #9144 display.EntityRender
       |--- #9145 display.EntityRender
       |--- #9146 display.EntityRender
       |--- #9147 display.EntityRender
       |--- #9148 display.EntityRender
       |--- #9149 display.EntityRender
       |--- #9150 display.EntityRender
       |--- #9151 display.EntityRender
       |--- #9152 display.EntityRender
       |--- #9153 display.EntityRender
       |--- #9154 display.EntityRender
       |--- #9155 display.EntityRender
       |--- #9156 display.EntityRender
       |--- #9157 display.EntityRender
       |--- #9158 display.EntityRender
       |--- #9159 display.EntityRender
       |--- #9160 display.EntityRender
       |--- #9161 display.EntityRender
       |--- #9162 display.EntityRender
       |--- #9163 display.EntityRender
       |--- #9164 display.EntityRender
       |--- #9165 display.EntityRender
       |--- #9166 display.EntityRender
       |--- #9167 display.EntityRender
       |--- #9168 display.EntityRender
       |--- #9178 ui.modal.panel.EditEntityDefs
       |--- #9183 ui.modal.dialog.Confirm
       |--- #9184 ui.LastChance
       |--- #9185 display.EntityRender
       |--- #9186 display.EntityRender
       |--- #9187 display.EntityRender
       |--- #9188 display.EntityRender
       |--- #9189 display.EntityRender
       |--- #9190 display.EntityRender
       |--- #9191 display.EntityRender
       |--- #9192 display.EntityRender
       |--- #9193 display.EntityRender
       |--- #9194 display.EntityRender
       |--- #9195 display.EntityRender
       |--- #9196 display.EntityRender
       |--- #9197 display.EntityRender
       |--- #9198 display.EntityRender
       |--- #9199 display.EntityRender
       |--- #9200 display.EntityRender
       |--- #9201 display.EntityRender
       |--- #9202 display.EntityRender
       |--- #9203 display.EntityRender
       |--- #9204 display.EntityRender
       |--- #9205 display.EntityRender
       |--- #9206 display.EntityRender
       |--- #9207 display.EntityRender
       |--- #9208 display.EntityRender
       |--- #9209 display.EntityRender
       |--- #9210 display.EntityRender
 |--- #9211 page.CrashReport

[FILE]         Cleared all file watches

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