I manually brought over all of the changes in that CL, and it does not seem to have solved the issue. I may need to bring over more than one changelist - there was at least one function DDC1_LoadAndValidateTextureData() where there were other significant changes between the 5.4 version of the code and the previous revision before CL 39490954. The new code compiles and runs, but just grabbing one function out of the previous changelist(s) probably isn’t the greatest idea.