ruslendingur

One more time.
I said that I had exactly same issue – blank popup window, one image uploaded to the gallery etc. Exactly same!
And both of us are not novice. I installed 20+ WP blogs, tested 50+ themes and even more plugins. And I tested NG gallery on localhost first – it works right from the box. And it was installed in very “harsh” environment – with several running plugins for image handling. So I thought “Well, this time it looks like a robust stuff”. Then I install it on live site – with a couple thousand images already there (that I can’t use anyway as NG gallery doesn’t use WP media library). Then no matter what I did – a couple of fresh installation over FTP, deactivating everything, changing theme (and it’s a pain for live site) etc – the result was same.
And you keep ignoring the issue – gallery has some critical bug that stops it in exactly same manner on two different sites/servers. And I’ve been using my host for 10+ years (but they won’t reconfigure their system because one WP plugin doesn’t work).

It’s not that free.
I wasted a couple of days searching through support forum and trying to resolve the problem.
So I assume I have the right to give 1 star for the product that doesn’t work well nor shows big desire to solve the problem but prefer just to ignore hard cases
https://www.ads-software.com/support/topic/images-not-uploading-plus-page-editor-button-loading-empty-popup?replies=7

“Thank you in advance for your precious time and effort,”
? Szymon (Simon) Kolodziejczyk

PS. Don’t bother – I gave up with NG Gallery.

As I said – NO MATTER WHAT!
I just rated plugin with one star and didn’t want to waste time to repeat what was said many times before.

What’s the point to duplicate same problem?

I doubt it’s the host’s server that is choking. I have exactly same problem. Just another hosting provider (I used it for 10 years – so far so good) and another theme. Talked to host and they advised me to talk to you.
And one more thing – NG Gallery works fine on localhost with same configuration as on live site.

PS. I tried all “cures” – but no luck ??

Same story as with others – just doesn’t work. Different themes, fresh install from master.zip etc. but for no good ??