PNG appearing as black

[Cecilia5E71]

My lower third (a PNG file) is showing up as black. I think the problem is similar to this one: https://community.adobe.com/t5/premiere-rush/png-showing-as-black-box-on-premiere-rush/td-p/10679882...

It was working fine last week. Is there a bug (I'm using Windows)? And what can I do to resolve the issue?

[petergaraway]

No aware of any known issues with png files. Did you update windows or your GPU driver lately? I'd try to make sure your software is up to date (Windows, GPU driver, and Rush). 

Also, I would try turning on/off 'Use Optimized Clips' under the View menu. 

Let us know how that goes. 

Best,

Peter