.PcDx12 file not generating in BF6 cache folder

As stated above. I was having issues with new S4 Reef map so I deleted cache files. The game generated the 2 other files

cache.manifest & gpustats.dat 

However the

.PcDx12 file will not re-generate.

I am having an annoying micro-stutter issue now on all maps and curious of this files importance. 

Anyone know of why this may be?