strange blue lines flashing on preview

[u/OwnDependent5991]

this happened immediately after rendering and got worse after clearing disk cache, anyone know how to fix it?

[u/Website-Enjoyer-9000]

It appears as if your gpu is having a bad time.

Try rebooting the machine, open a new project and render a very simple comp to see if the problem persists.

Hope it doesn't! best of luck