Gallery sequence of images vs once you click on picture and use next or previous

when you are on the gallery and see the pictures in an order

you click on a picture and you use the prev or next , the pictures do not sequence in the same order

This should happen only with older images imported from the old GWM site. Uploads were approved in batches, so many of the pics have the same timestamp. When this is the case, their ordering is arbitrary, and the "Next" button may report a different image than what you see in the image index.

I tried fixing it by also making it do a secondary-sort by ID (so if the timestamp is the same, sort by ID), but it turns out this decreased the performance quite a bit and as a result is unfortunately not worth it.

Nice graphic by the way  :)

Thank you for the prompt response and the explanation.

would you happen to know what photo ID this should be resolved at or around?

Seems like this https://www.girlswithmuscle.com/969105/ was the last picture posted on the old site.