You know, it might be helpful if you provided BOTH strange and non-strange screenshots.
Please see updated screenshots
As far as I know this might happen if these 'different computers' are actually a Windows computer and a Mac.
Some fonts render differently, that's all.
Either break apart to shapes or you have to find a font that does not have this issue.
Hmmm both are Macs with exact same fonts installed from the same server.
If Animate version is the same, look for differences at OS level, screen resolution, etc.