A quick update. I have my permalinks set to /%category%/%postname% when I switch to default, the gallery works. Is there any way to get the gallery working with /%category%/%postname% ?
For some reason, changing permalink to default and back seemed to fix the problem.
Cheers
Dear amariadas,
The issue you have faced seems to be strange. And it is strange that it was solved that way.
Please let us know in case you have any other issues with the issue.
Thank you.