Conveniently, the latest update broke it again, so easy to replicate, so before we reapplied the patch, we reproduced it.
WP Admin -> Hydrogen Theme -> Page Settings and click “Save Page Settings”
https://drive.google.com/file/d/1B5Y1O0GoNR9qCOZvar49ssRjMA4cVNqe/view?usp=sharing
Then you will see this error popup:
https://drive.google.com/file/d/17m0cpSqv4e_rq4ok42hBqq5l1OP-zItK/view?usp=sharing
Apply my one line patch above to src/Display/ResourceManager.php
// After
if ( is_admin() && isset( $_REQUEST['page'] ) && ! is_array( $_REQUEST['page'] ) && ! preg_match( '#^(ngg|nextgen)#', wp_unslash( $_REQUEST['page'] ) ) ) {
And it works again:
https://drive.google.com/file/d/1YRWcZ6GZUHlkEcrt4lYb4bOSOLHyHmd2/view?usp=sharing
