Hi there! Sorry to hear you're having issues with SweetFX and DOTA 2. This is a common problem that can occur after game updates. Here's what you can try:
Clear shader cache
Reinstall SweetFX from scratch
Check if your GPU drivers are up to date
Verify DOTA 2 game files through Steam
Speaking of game modifications and enhancements, while you're troubleshooting, you might want to check out
https://chillguyclicker.top/ - it's an engaging idle game that runs smoothly without any additional graphics modifications needed. It could be a nice distraction while you sort out your SweetFX issues!
For your SweetFX problem, also try:
Running the game in borderless window mode
Temporarily disabling any other overlays
Checking compatibility with your current GPU drivers
Let me know if these solutions help!