Email template - Picture disappears after saving

Hello

I have been very successful in the past to create template emails and to use it for either orders/invoices/shipments.

However, after the last update, when I create a template and add a picture in the "content’ box, it disappears when I save the template. The text that I add is remains, but the picture disappears.

Is it only me who is facing this issue?

I look forward to hearing from you.

Regards
Js