Unreal Engine Issues

Undo function breaks local variables in Blueprint Function after compiling

Blueprint functions appear to correctly associate local variables when renaming the function. However when undoing a rename with ctrl-z the local variables appear to lose their association. Redoing ...

Kinematic in Physics Asset Overrides Bone Scale of Skeletal Meshes

In a character's Physics Asset, a bone that is set to Kinematic and its children will have a scale of 1 overriding the Skeletal Mesh's Scale Transform settings. When the root of the body is changed ...

Changing the “show mouse cursor” variable of PlayerController with a mouse button input does not work the same as with a keyboard input

Using the mouse input to show the mouse cursor acts like an Alt+Tab. When clicking the mouse input again to no longer show the cursor, the camera controls stop at the edge of the screen. Reported i ...

"Assertion failed: NumberOfFreeBits >= 0" on clients that attempt to connect to a server with the -NoPacketHandler option

With the rework of IP address resolution in 4.25, this assert now occurs. When no packet handler is used, UPendingNetGame::InitNetDriver calls SendInitialJoin() immediately, before async address res ...

Low-level memory tracking has negative values for "FMallocUnused" and "Untracked"

"FMallocUnused" is immediately bellow 0. "Untracked" is reported to go below 0 after very long playtimes (over 36 hours). Reported in version 4.25.3(CL 13942748). Tested and found negative values f ...

Texture2D values and gradients are incorrectly appended in Alpha channel

After creating new material and inputting a texture coordinate node, and connecting with two mask nodes for R and G, then connecting to "Make Float 4" nodes, the values in the Alpha Channel don't ma ...

Box image size changes depending on texture resolution

When the resolution changes, the cutting position seems to change depending on the margin setting. ...

Hard to change the size of the standalone window.

Selected Option in Switch Actor Doesn't show up in variant manager properties.

Selected Option is part of a Switch Actor property. When attempted to add the property in variant manager, the property named selected option doesn't show up in variant manager properties. Reported ...

Bloom intensity broken with Post Processing Material replacing Tonemapper

When replacing the Tonemap using a Post Process material, the Post Process Volume's Bloom Intensity can only be turned on or off, without varying degrees of effect. Reported in version 4.25.3(CL 1 ...