We have sen on your email last version of component - OS Responsive Image Gallery
In it was fixed behavior of watermark height for vertical image.
It must help solve your issue. If after update You face with same issue give us
full FTP and admin access
and our team will try to find solution special for You
Link on website
Joomla Admin
username
password
FTP
FTP host
FTP username
FTP password
Before making any upgrades, make the backup of your files and images of gallery
At first please check upgrade/update process at the test website!
Thanks,
Taras
OrdaSoft team
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