Because of this issue and this PR not being merged this is kind of annoying to troubleshoot.
I was able to set _CrtSetBreakAlloc on the allocation order numbers and it seems to be related to font stuff:
2701.txt (3.2 KB)
2721.txt (3.2 KB)
2724.txt (3.4 KB)
2725.txt (3.8 KB)
2942.txt (3.8 KB)
2943.txt (4.0 KB)
I tried setting _ITERATOR_DEBUG_LEVEL to 0 to see if it was an allocation problem with Debug, but it didn’t make a difference.