Gray Window in Adobe Dimension - MacOS version 10.15.5

macOS Catalina
Version 10.15.5
MacBook Pro (15-inch, 2017)
Processor 2.8 GHz Quad-Core Intel Core i7
Memory 16 GB 2133 MHz LPDDR3
Startup Disk Macintosh HD
Graphics Radeon Pro 555 2 GB, Intel HD Graphics 630 1536 MB 

I'm in love with Adobe Dimension. I've been using it but sometimes it freezes and I can't keep working with a file.

Please let me know if you have any suggestions on how to fix this.

Thank you,

– Karla