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Updated: Changing a procedural splineMesh to being a closed loop causes maps to crash on load

Okay, I've figured out what was causing the crashes. Changing a procedural splineMesh blueprint to being a closed loop causes maps saved before that change was made to crash on load

To reproduce:

  • Create a procedural splineMesh blueprint (I used this method): https://www.youtube.com/watch?v=7YUxM0NDWRY&spfreload=10

  • Create a map (I'll call it map1) and add that procedural splineMesh blueprint in.

  • Save that map

  • Create a new map (I'll call it map2) and add that procedural splineMesh blueprint in.

  • Edit the procedural splineMesh blueprint object to have a closed loop spline (note that map2 continues to work just fine, and can be opened and closed without issue)

  • Save everything

  • Open map1 - the editor will crash.

Sorry if this is convoluted - there's probably a simpler way to reproduce this, but this is what works for me.


Old Post: 4.7.6 Project crashes on map open

My 4.7.6 project crashes (to the crash reporter) when I open my map.

The project worked fine until recently. Last time I was using the editor, one small test map (not the map in question) refused to save due to not being able to locate a dependency (or something similar - can't quite remember). I quit without saving that map, since I couldn't get the error to resolve. Next time I went to open the editor, it would crash on startup. Other posts advised to change the default map in the DefaultEngine.ini to "/Engine/Maps/Templates/Template_Default". This change allowed me to open the engine, but if I attempt to open any other map (not the test map) a crash occurs. I can create new maps with all the same content, but not open any of the old ones.

Project details:

  • Fairly small project

  • Only blueprints, no c++

  • Using the launcher version of the editor, not github.

  • OSX 10.10.1

crash log: https://gist.github.com/hhhudson/26feb26bd4e991d39f81

Product Version: Not Selected
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asked May 06 '15 at 02:44 PM in Bug Reports

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SOFT SPOKEN
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avatar image SOFT SPOKEN May 06 '15 at 02:59 PM

Additionally, copying a backup (from a few days ago) of any map in and attempting to open produces the same result.

avatar image SOFT SPOKEN May 06 '15 at 03:12 PM

I've figured out what was causing the crash, and updated the post accordingly.

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Hi SOFT SPOKEN,

Thank you for the report. I was able to reproduce the crash in 4.7.6 but this is now fixed in our latest internal build. You should see this working properly in a future update.

Cheers,

TJ

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answered May 06 '15 at 06:13 PM

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TJ V ♦♦ STAFF
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avatar image SOFT SPOKEN May 06 '15 at 06:50 PM

wunderbar! Thank you.

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