Unreal Engine Issues
Unreal Engine Issues
Using Fixed Frame Rate Increases the Speed of Auto Save
UE - Foundation - Core - Oct 26, 2015Using a lower fixed frame rate (i.e. 20fps) causes the auto save timer (when set to the default of 10) to count down in 3 seconds. Found in 4.10 Preview 2 CL 2733139. Reproduced in 4.9.2 binary an ...
Engine no longer compiles after backporting RHI thread improvements and crash fix
UE - Rendering Architecture - RHI - Apr 24, 2025Unreal Engine 5.4 code will no longer compile after applying both the RHI improvement code changes as described in [Link Removed] and the fix for the crash described in [Link Removed]. The compilati ...
T.MaxFPS not restored when exiting PIE while Fixed Frame Interval Playback is enabled
UE - Anim - Sequencer - Jun 12, 2017T.MaxFPS not restored when exiting PIE while Fixed Frame Interval Playback is enabled Regression: YES Directly related to CL:3365017, it would seem. Broken: 4.16 Worked: 4.15 ...
[CrashReport] UE4Editor_Core!rml::internal::LocalLOCImpl<8,32>::get()
UE - Foundation - Core - Apr 25, 2018User comments in crash group:this map crashes on loadok so it seems opening any map from Modular Stadium Kit causes crash right after shaders compiling is done! im using it with another market place ...
If Pause Event is played in second half of Fixed Frame Interval, you can't resume playing
UE - Anim - Sequencer - Jun 13, 2017If Pause Event is played in second half of Fixed Frame Interval, you can't resume playing. Pause event appears to fire again when trying to resume playback. To expand on the summary, if you have a ...
Trying to set/change an element of a fixed-size TAssetPtr array in the Editor results in a crash.
UE - Foundation - Core - Dec 9, 2016Trying to set the value of an element of a fixed-size TAssetPtr array in the Editor results in the Editor crashing. This did not occur in 4.13. The attached callstack is from debugging the project ...
Fix Up Redirectors does not affect redirectors within renamed folder
Tools - Sep 23, 2016Fix Up Redirectors does not affect redirectors within renamed folder. ...
20 FPS performance drop between 4.7.6 and 4.8 on devices rendering Metal only
UE - Platform - Mobile - Jun 22, 2015User reported a considerable performance drop on iOS between versions 4.7.6 and 4.8. I was able to reproduce this perf drop using the steps he provided. ...
The Editor freezes during PIE when loading a .sav file from 4.7 in a 4.8 or 4.9 project
UE - Gameplay - Jun 24, 2015The Editor freezes during PIE when loading a .sav file from 4.7 in a 4.8 or 4.9 project. The user reporting this reports a memory leak and crash, but I have not been able to reproduce that in partic ...
Logs containing UTF-8 characters don't appear in CMD/Terminal on Linux
UE - Platform - Linux - Sep 5, 2018If a log message contains UTF-8 characters like "ő" or any Russian one ("л") it won't be printed to cmd or terminal but it will be printed to the log file. This is a regression from 4.19.2 (CL-40337 ...