Coulden't find a dedicated place for bug reports so I will put it here.

When saving a stamp thats extremely wide but also extremely short it goes outside the preveiw box. Far too.

file:///C:/Users/mrjak/Pictures/Screenshots/Screenshot%20(1453).png
(I have no idea if others can actualy access this or if its just my pc only).
(I tried to use the insert/edit image button for the first message).