Premiere Pro Timeline gets "sticky" and useless after working in a project!

[b00k3nds]

Bug - YouTube

Watch this video from 2:06 to see the issue. I have this bug that occurs every now and then in seemingly random projects. The timeline becomes stuck, the scrubber doesn't visually move, but pressing play brings it back. Selecting tracks doesn't work, because the box just gets stuck there. The whole project basically becomes laggy. I'll try other past projects and it works. Working off a 1TB HD with plenty of space, that normally never gives me any issues.

I'm working with 4k footage here, but the intro you see me dragging onto the timeline after the first two clips is 1080.

Things I've tried:

Uninstalling and reinstalling premiere

deleting media cache and media cache files

creating a new project

creating a new sequence in both this project and a new project

restarting my PC

changing from hardware acceleration to OpenCL only and then to Software only, still had this issue

Specs:

GeForce GTX 1070

Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz

15.95 GB RAM

Need some help, thanks!

[b00k3nds]

UPDATE: Now the timeline and effects tabs aren't even loading. Making a new project does NOT solve the issue.

[b00k3nds]

Quick bump, this project is due in a week and I need to be able to work on Premiere on THIS PC. Any help?

[Kevin-Monahan]

Hi b00k3nds,

Definitely try using the proxy workflow: Basic Premiere Pro editing workflow

Thanks,
Kevin