Reinstalled Blender, the addon installs fine. However, importing SMD animations is still not possible:

Python: Traceback (most recent call last):
File "C:\Users\CoolGuy\AppData\Roaming\Blender Foundation\Blender\5.0\scripts\addons\io_scene_valvesource\import_smd.py", line 77, in execute
bpy.context.view_layer.objects.active = self.qc.a

File "C:\Users\CoolGuy\AppData\Roaming\Blender Foundation\Blender\5.0\scripts\addons\io_scene_valvesource\import_smd.py", line 1238, in readSMD
if target_arm:

File "C:\Users\CoolGuy\AppData\Roaming\Blender Foundation\Blender\5.0\scripts\addons\io_scene_valvesource\import_smd.py", line 424, in readFrames
phantom_parent = smd.phantomParentIDs.get(phantom_parent)

File "C:\Users\CoolGuy\AppData\Roaming\Blender Foundation\Blender\5.0\scripts\addons\io_scene_valvesource\import_smd.py", line 590, in applyFrames

File "C:\Users\CoolGuy\AppData\Roaming\Blender Foundation\Blender\5.0\scripts\addons\io_scene_valvesource\import_smd.py", line 537, in ApplyRecursive

AttributeError: 'Action' object has no attribute 'groups'

This issue affect all smd animation files, both when importing them via qc, and when importing directly. I'll have to downgrade Blender for now, but please look into it, don't brush it off.

Wish it did. I must once again specify that even installing BST errors blender out. I will reinstall blender then

When attempting to install sourcetools blender encounters a runtime error: "Name "typing" is not defined".

Old 3.3.2 version installs, but is not able to import smd animations at all, throws a bunch of crazy errors and gives up. ('Action' object has no attribute 'groups')

I'm trying to run a win11 steam blender version, with the latest (3.4.3) sourcetools addon.

If no one else has this issue with the newest blender version, lmk. Might be a problem on my end.

As a sidenote this serves as a grim memento mori that even such important tools as this one can just seize to exist because of blender devs and whatnot. Thank you for your work everyone who keeps source tools up to date. You are our lifeline.