NextGen Gallery - Bulk Smush Now

Hi there,

I was wondering if someone could help me with the WP Smush Pro - NextGen Gallery integration. It shows up. But clicking the the Bulk Smush Now option does not do anything there it seems.

For a quick record;
- Latest WP
- Latest NextGen Gallery Pro
- Latest WP Smush Pro
- it does work for the normal Media Library just fine.
- Support Access should be available.

I have checked console / network tabs in the developer bar aswell, and nothing seems to get noted so if anybody had any pointers that would be more then awesome.

Sidenote: site is currently a development version, so testing something is no problem etc.

Thanks in advance.,
Patrick Dankers