The Gallery code does not work correctly - partly

[Tillyfotografeert]

I work with an wordpress site (www.tillyfotografeert.nl) and awesome-flickr- gallery-plugin
I use gallery code for that and it always worked very well. But since last week, the codes that I use in wordpress only work partially. Up to and including 1 Aug 2018 it will be fine. Then no more.
Someone who can help?

[Seadog69]

I am experiencing a similar problem with Wordpress 5.3.2 and AFG 3.5.6. I told AFG to delete the cached galleries, and my pictures disappeared. Some of the galleries came back after a day or so (AFG cache refresh is 1 day), but a couple of them NEVER came back.