PLEASE HELP! PNGs exported from Photoshop are causing major glitches when imported into Animate

I have a massive project deadline and am about to miss it because of this issue. 

When I export pngs from photoshop and import them into adobe, then animate them, major glitching ensues. Not all pngs seem to be corrupted immediately- sometimes they work at first and start glitching later, and sometimes the glitch is immediate. The glitch appears as both the timeline player lagging and rapid flashing in and out of the image. The images are 1080x1080, so not too large. 

I have uninstalled/ reinstalled older versions of both Animate and Photoshop. I have reset all preferences, updated Mac OS (now it's Ventura 13.2.1). I have plenty of storage/ disk space and have been animating complex animations for months before this problem started. I have been in multiple adobe help chats, given them remote control over my computer all to no avail. 

I have attached a quick video illustrating the glitching problem.

Any and all help is so greatly appreciated– I have been working nonstop trying to fix this for days. 

mac specs: 

Processor: 2.3 GHz 8-Core Intel Core i9

Graphics: AMD Radeon Pro 5500M 8 GB

Memory: 32 GB 2667 MHz DDR4

OS: Ventura.13.2.1