Uninitialized Critical Section exception error in Niagara/VectorVM when gflags application verifier enabled causing potential Memory Corruption

Rendering - Niagara - May 25, 2021

The following is posted from the user who submitted this issue: We noticed a crash happening in a certain area of our game, and the debugger showed it appeared to be attempting to free an invalid m ...

VirtualScoutingInteractor BP does not allow for rotation offset

Tools - Virtual Production - VR Scouting - May 25, 2021

RHILockTexture crash with ray tracing enabled

Rendering - May 25, 2021

Looks like it's a resource state tracking assert issue on the resource. ...

Material Instance changes are not propagating to layers.

Rendering - May 25, 2021

Please note, during this repro, when I attempted to change the colour of the layer_inst using the colour wheel, it would not save the updated colour. This may be a separate bug. ...

EyeAdaptation node is not working in Decal

Rendering - May 25, 2021

It is working correctly in 4.25.4. In 4.26.2, it is not working. It is also not working in UE4main 16382403. ...

Editor freezes up when dragging the scroll bar of the Visual Logger window when a bvlog file isn't loaded

Gameplay - AI - May 21, 2021

When adjusting the scroll bar in the Visual Logger window, the editor freezes up. There is no callstack provided in the logs. The only way to close the editor at that point is to close it through th ...

Stacked shots will evaluate both sub sequences instead of just the topmost

Anim - Sequencer - May 19, 2021

Overlapping shots will evaluate all shots instead of the topmost one. ...

Editor becomes unresponsive for long periods between edits of a user-defined enum type when it's referenced by one or more user-defined struct types.

Gameplay - Blueprint - May 17, 2021

After adding a member to a user-defined struct type and changing the member type to a user-defined enumeration, repeated edits to that enumeration will eventually cause the editor to become increasi ...