When I animated the lower face of a character (lipsing) the sliders is stucked. When i try to move slider it moves, but when released, it returns to the starting position. How to fix it?

Whenever I use Source Filmmaker, the following causes my session to crash: Deleting a Model, De-Selecting a Fully Selected Model, Changing my Window Layout, or Exporting a Movie. That last one (Exporting a Movie) means I can't export high-action works onto my PC without the filmmaker crashing, and the result is a faulty file that can't be played. Exporting movies is critical to publishing well-worked-on SFMs onto YouTube, but if my SFM is going to crash over an export, I can't use it. Like I said in the...

i tried to make a banner but for some reason it cut in half. i tried to put in 2,560 × 1,440 px but it just doesnt work. is theres a fix orrr?

A few months back, I installed Windows 11. And since that, even with the command "-sfm_resolution 1080" my sfm doesn't show the 1080p button in the render options.

when source tries to do the heartbeat command, it pops up with unknown command, and i was wondering, is this an important command and it not working is a problem and if so, how do i go about fixing this. i'm wondering this as i've had problems with sfm not working recently....