Since the beginning of October 2023 gmail webmail has started having this issue: when you receive a forwarded mail with inline images you just see a white box, the images are present only as attachment. This is quite annoying!
Here is a technical explanation, but I couldn't find a solution yet.
I think many people are frustrated about this bug and are looking for posts about that; but it's hard to find them searching with google at the moment, I found only the one above, the others are old and not relevant.
I hope my question will help someone, thank you for comments
The issue has been fixed by Google as reported here