Objects randomly shifted in Mac Powerpoint

Hi,

I am using Office 365 on my 21.5" iMac, which is running Catalina 10.15.4. Whenever I open .pptx files from my colleagues, the text objects in the file are always randomly shifted. My colleagues use Windows. As far as I can tell, this happens all the time.

Another observation - this problem doesn't happen on my Macbook Air, although that runs the exact same OS version as my iMac. Or, let me correct that slightly - this problem happens once in a blue moon on the Air. 

Any thoughts? It seems like there is some configuration issue, because it appears to be a systemic problem.