Development Platform & Builds

Debugging, Optimization, & Profiling Looking for discussions on debugging, optimizing and profiling your projects? This is the place for you. XR Development All things virtual, augmented, and mixed reality. Mobile For mobile development discussions, including Android, iOS, and beyond. Please use appropriately named TAGS. Cloud Marketplace VM Our Cloud Marketplace Virtual Machines with Unreal Engine come pre-loaded with the latest release of UE and all its prerequisites, so you can get straight to creating in the cloud with no downloads or installs. Use it as a starting point for your team’s virtual workstations or other cloud-driven content creation pipelines for virtual production, gaming, automotive design, digital twins, and more.

Topic	Replies	Views	Activity
VR Hand tracking stopped working XR Development question , bug-report , unreal-engine	10	165	October 3, 2025
support for problems whit twinmotion 2025.1.1 Platform & Builds question , bug-report , twinmotion	1	12	October 3, 2025
WinPumpMessages Platform & Builds question , unreal-engine	0	1	October 3, 2025
Limit CPU cores or thread numbers in UAT Cooking process Mobile question , unreal-engine	0	3	October 3, 2025
ue 4.27 packagin error, I did not have before. Platform & Builds question , unreal-engine	3	26	October 3, 2025
MRQ: EXRs don't support 32-bit images ON LINUX (bugs) Debugging, Optimization, & Profiling question , unreal-engine	1	16	October 3, 2025
Why does windows signtool report packaged .exe as invalid? Platform & Builds question , UE4 , unreal-engine , Packaging , windows	10	3100	October 3, 2025
VR 5.3 Project Build Package Failed Mobile packaging-projects , unreal-engine , Android-Packaging , Packaging-Error , Packaging-Failed , fab	2	11	October 3, 2025
IOS 26 SDK Mobile question , unreal-engine	0	5	October 3, 2025
UE 5.6.1 crash at 87% when running DX12 (works only with -dx11) Platform & Builds question , editor , crash , bug-report , unreal-engine	0	6	October 3, 2025
Dedicated Server and World Partitioning (MissingLevelPackage) Platform & Builds question , unreal-engine , Packaging , UE5-0	24	4268	October 3, 2025
Error opening asset on 5.6 - bCustomPropertyListForPostConstructionInitialized - Custom Property List Not Initialized Platform & Builds question , unreal-engine , Epic-Pro-Support	14	7	October 2, 2025
Why do deleted Content Browser folders reappear? Platform & Builds question , editor , bug-report , content-browser , folders , directory , unreal-engine	49	13722	October 2, 2025
Cant Package Project in SHIPPING configuration in UE5.6 Platform & Builds question , bug-report , unreal-engine	18	681	October 2, 2025
Unreal 5.5.4 + Meta XR v78 -> VR Preview does not work with Link XR Development question , unreal-engine	1	39	October 2, 2025
Mutable 'Clip With UV Mask' node crashes editor in 5.6.1 Debugging, Optimization, & Profiling unreal-engine	2	50	October 2, 2025
Nanite and Raytracing using increasing amounts of VRAM in 5.6.1 after upgrading from 5.4.4 Debugging, Optimization, & Profiling question , unreal-engine	3	57	October 2, 2025
Replication not working on actor. Debugging, Optimization, & Profiling Blueprint , unreal-engine	1	6	October 2, 2025
VR Preview not working, but Standalone Game is working? XR Development question , editor , unreal-engine	1	20	October 1, 2025
Packaged game won't start Platform & Builds question , crash , unreal-engine	2	32	October 1, 2025
Horde Version vs. (Project) Engine version Platform & Builds question , unreal-engine	2	12	October 1, 2025
Material Interface Parameter in Niagara Not Updating in Packaged Version Platform & Builds Blueprint , question , unreal-engine	1	10	October 1, 2025
Unable to set adaptive icons for android Mobile question , build , unreal-engine , icon , Android-Packaging	2	1671	September 30, 2025
Loading .uasset and u.exp files directly Debugging, Optimization, & Profiling question , unreal-engine	0	6	September 30, 2025
FFakeStereoRenderingDevice support XR Development question , unreal-engine	1	33	September 30, 2025
passthrough enable and disable XR Development Blueprint , unreal-engine	2	241	September 30, 2025
CSM dynamic shadows on mobile. Only one level of intensity? Mobile Android , question , Shadows , unreal-engine	3	16	September 30, 2025
UE5 EA dedicated server (Dev in Editor and Package) Platform & Builds unreal-engine , UE5-0	6	4169	September 30, 2025
How to use the new (v1.05+) Unreal Insight version for Unreal 4 (4.27) project ? Debugging, Optimization, & Profiling question , unreal-engine , Insights , Unreal-Insights	1	117	September 30, 2025
UE 5.6 - while cooking, freeze happens with multiple HTTP timeouts and awaits after DDC forever under UNiagaraSystem::WaitForCompilationComplete() Platform & Builds question , unreal-engine , Epic-Pro-Support	16	3	September 29, 2025