When creating a Curve Compression Setting asset and changing the codec from Compressed Rich Curves to either Uniform Indexable or Uniformly Sampled the editor crashes.
Tested in //UE4/Release-4.26 @ CL 15973114 and this did not occur, so marking as a Regression.
RESULT:
The editor crashes
EXPECTED:
**The user can change the codec type without crashing
Windows GetLastError: The operation completed successfully. (0) Error: === Critical error: === Error: Error: Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:D:\Build\++UE4\Sync\Engine\Source\Runtime\Core\Public\Containers/Array.h] [Line: 703] Error: Array index out of bounds: 0 from an array of size 0 Error: Error: Error: [Callstack] 0x00007ff903f73b19 KERNELBASE.dll!UnknownFunction [] Error: [Callstack] 0x00007ff8b0ef39c8 UE4Editor-Core.dll!`string'() [] Error: [Callstack] 0x000000894e175f60 UnknownFunction [] Error: [Callstack] 0x0000000000000400 UnknownFunction [] Error: [Callstack] 0x0000000000000068 UnknownFunction [] Error: [Callstack] 0x0000000000004000 UnknownFunction [] Error:
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-135507 in the post.