huh, for some reason i got a super long error while reinstalling it after forward porting my settings from 2.9, but then i tried uninstalling it from 2.9, deleting all trace of 3.0, and then porting the settings from 2.9 and doing a totally fresh install of the source tools and it worked. it must have just been my pc or my software..... apologies for the bad bug report and thank you for the advice

I was testing this using 3.1.1.

When using the current version of the Blender source tools in Blender 3.0, the option to choose to export as SMD or DMX is missing, as is all the information and options normally below it.

Hoping for a fix to this, as not having DMX support is a deal breaker for me being able to use the current Blender version!

images to demonstrate what is shown in 2.92/2.93 vs 3.0:
https://imgur.com/a/MirG2T5