l4d2 hammer crashes on launch

[placid nymph]

either using l4d2 authoring tools, running the file or via commandline, it opens, displays the hammer title for half a second, and crashes afterwards. it leaves a minidump but thats not useful i think
i am on windows 11, l4d2 is on a non-C:/ drive (this doesnt affect other hammers, source sdk's hammer works perfectly)

[exotic mural]

verify game and tools cache , the tools need to be on the same drive as the game the sdk 2013 tools are different in that they include the sourcetest setup

[placid nymph]

game and tools on same drive, verified cache and reinstalled, still crashes

the minidump is named hammer_assert_[time].mdmp so it could be a lead

[placid nymph]

reinstalled l4d2, no luck

[placid nymph]

moved to C:\ still no luck, (my hammer is haunted)

[exotic mural]

theres another version of the tools see if they work for you

[solar inlet]

how many threads does your cpu have

[placid nymph]

16

[placid nymph]

launches, says "playing" for a bit\ then crashes; opening the local files and running hammer.exe ,it complains about missing dll's; vstdlib and tier0; adding them just makes it do nothing and crash

[placid nymph]

could it be that i dont have l4d2 beta?