after effects queda congelado en abriendo proyecto

Would you launch After Effects in safe mode? If you can launch After Effects in safe mode, you remove third party plug-ins you do not need.

How to start:
Launch After Effects while holding down the specified key combination (Ctrl+Alt+Shift or Command+Option+Shift). A dialog box will appear, allowing you to confirm you want to start in Safe Mode and choose whether to disable plugins.

That's not ideal! Sorry about the issue.

Does it happen with a specific project file? Where your project files are saved - are they stored in an external, internal or shared location?

Let us know. Moving this thread from Bugs to Discussions for troubleshooting.