Unreal Engine Issues
Unreal Engine Issues
Structures get broken after saving and reopening project
UE - Gameplay - Nov 12, 2018When a project is reopened that contains structures, they will be corrupted with a hash code instead of their original values. If the "Break Struct" node is removed it can't be re added as it is not ...
GetKnownPerceivedActors doesn't stop calling when specified AISense should be forgotten
UE - AI - Mar 17, 2019There is a difference in implementation and set of checks that are made in GetKnownPerceivedActors() depending on if you use specific SenseClass or leave it as nullptr (so it will return info for al ...
Adding an entry to arrays within Details Panels automatically collapses expanded entries
UE - Rendering - Architecture - Materials - Apr 3, 2019Adding an element to an array in the Material Editor automatically collapses all expanded elements in the array. I've successfully reproduced this issue with the following nodes:LandscapeGrassOutput ...
Steam API is disabled when playing in Standalone Game
UE - Online - May 11, 2020The Steam API is disabled when playing a Standalone Game that was started using the Play button. REGRESSION: Yes Worked: 4.24.3 Binary CL-11590231 Broken: 4.25 Binary CL-13261010 I do not see this ...
fbx attribute curve import do not support correctly tangent at the start end end of the curve
UE - Editor - Content Pipeline - Import and Export - Sep 2, 2020We are not reading all the key flags and we do not import correctly start key and end key tangent. I create a shelve but this is not the complete fix, we must do this only if we do not have fbx ket ...
Default values specified for local BP variables of type DateTime and Timespan don't actually work
UE - Gameplay - Blueprint Runtime - Nov 6, 2020Have attached examples of this in action, including breakpoints showing the FDateTime::Ticks count as zero. Also showed that this is an issue for the existing GetYear/GetMonth/GetDay methods (and an ...
Niagara Simulation Stage + DynamicMaterialParameters crash
UE - Niagara - Feb 6, 2021deleting the code "&& SimulationStages[i]->bEnabled" in UNiagaraEmitter::GetScripts will bypass the problem [Image Removed] ...
Copying collapsed graph with a node with a custom Exec pin results in duplicate pin name
UE - Framework - Blueprint Editor - Aug 17, 2022When duplicating a collapsed blueprint graph which has a node with a custom Exec pin, this results in blueprint compilation error that a duplicate named pin is found. Duplicated exec pins aren't ass ...
FAnimUpdateRateParameters::GetInterpolationAlpha appears to be returning an invalid value for TrailMode
UE - Anim - Aug 5, 2023It appears that FAnimUpdateRateParameters::GetInterpolationAlpha is not returning a sensible value when running in TrailMode. Currently the only variable in the calculation is EvaluationRate which ...
Deploy device not saved in Project Launcher
UE - Editor - Jun 13, 2024The deploy device selected in project launcher custom profile does not get saved. After restarting the editor, all selections are cleared, and have to be re-selected in the deploy device every time. ...