I seem to have an issue/bug when editing an Advertisement Product.

Entering dimensions in the 'Banner Maximum Dimensions' field will save ok, but if you ever edit the product again it will revert to 100x100 each time. Obviously this isn't an issue if I remember to change it again, but on occasion I forget that and it causes me a problem until I go in and re-edit.

So, to recreate:

Create and save an Advertisement product, entering the Banner Maximum Dimensions (say, 300x600)
Then, edit that product - you'll see the dimension (300x600) you previously entered and saved has been forgotten and it has reverted to a default 100x100.

Thank you for bringing this issue to our attention! I can confirm this should be further reviewed and I have logged an internal bug report for our development team to investigate and address as necessary, in a future maintenance release.