moved to Indesign forum
The most logical fix would be to replace all periods with period+space, then remove any possible double spaces. Is there a reason why you can't do that?
1 person found this helpful
Ah, no GREP - no fun
Alternatively, find any punctuation mark before the uppercase letter, and insert a space between them:
Thank you so much!...that solved the problem and instantly replace 300+ mistakes. Cheers Winterm!