Cannot seem to make this work right

Sorry I did not get back to this for a while. There is an example page at https://www.wis.community/dunn-county-infohub
- there is a block at the bottom of the page that should only be visible to larger screens.

There is a slug of console errors along the lines of

js_ix73XmeryiMX94PUb…zRAGYfQi_AVLk9J1:21 Uncaught TypeError: $(...).once is not a function
at Object.attach (js_W7rbNMr8sQ-UQVJlm…fQi_AVLk9J1:17:1339)
at js_ix73XmeryiMX94PUb…YfQi_AVLk9J1:21:427
at Array.forEach ()
at Drupal.attachBehaviors (js_ix73XmeryiMX94PUb…YfQi_AVLk9J1:21:353)
at HTMLAnchorElement. (js_ix73XmeryiMX94PUb…i_AVLk9J1:289:15049)
at Function.each (js_ix73XmeryiMX94PUb…YfQi_AVLk9J1:3:3129)
at ce.fn.init.each (js_ix73XmeryiMX94PUb…YfQi_AVLk9J1:3:1594)
at Drupal.AjaxCommands.insert (js_ix73XmeryiMX94PUb…i_AVLk9J1:289:14979)
at js_ix73XmeryiMX94PUb…i_AVLk9J1:289:11213
attach @ js_W7rbNMr8sQ-UQVJlm…zRAGYfQi_AVLk9J1:17
(anonymous) @ js_ix73XmeryiMX94PUb…zRAGYfQi_AVLk9J1:21
Drupal.attachBehaviors @ js_ix73XmeryiMX94PUb…zRAGYfQi_AVLk9J1:21
(anonymous) @ js_ix73XmeryiMX94PUb…RAGYfQi_AVLk9J1:289
each @ js_ix73XmeryiMX94PUb…0zRAGYfQi_AVLk9J1:3
each @ js_ix73XmeryiMX94PUb…0zRAGYfQi_AVLk9J1:3
insert @ js_ix73XmeryiMX94PUb…RAGYfQi_AVLk9J1:289
(anonymous) @ js_ix73XmeryiMX94PUb…RAGYfQi_AVLk9J1:289
setTimeout (async)
Drupal.throwError @ js_ix73XmeryiMX94PUb…zRAGYfQi_AVLk9J1:21
(anonymous) @ js_ix73XmeryiMX94PUb…zRAGYfQi_AVLk9J1:21
Drupal.attachBehaviors @ js_ix73XmeryiMX94PUb…zRAGYfQi_AVLk9J1:21
(anonymous) @ js_ix73XmeryiMX94PUb…RAGYfQi_AVLk9J1:289
each @ js_ix73XmeryiMX94PUb…0zRAGYfQi_AVLk9J1:3
each @ js_ix73XmeryiMX94PUb…0zRAGYfQi_AVLk9J1:3
insert @ js_ix73XmeryiMX94PUb…RAGYfQi_AVLk9J1:289
(anonymous) @ js_ix73XmeryiMX94PUb…RAGYfQi_AVLk9J1:289
Promise.then (async)
(anonymous) @ js_ix73XmeryiMX94PUb…RAGYfQi_AVLk9J1:289
Drupal.Ajax.commandExecutionQueue @ js_ix73XmeryiMX94PUb…RAGYfQi_AVLk9J1:289
Drupal.Ajax.success @ js_ix73XmeryiMX94PUb…RAGYfQi_AVLk9J1:289
t.success @ js_W7rbNMr8sQ-UQVJlm…zRAGYfQi_AVLk9J1:18
processReplacement @ js_W7rbNMr8sQ-UQVJlm…zRAGYfQi_AVLk9J1:76
checkMutationAndProcess @ js_W7rbNMr8sQ-UQVJlm…zRAGYfQi_AVLk9J1:76
(anonymous) @ js_W7rbNMr8sQ-UQVJlm…zRAGYfQi_AVLk9J1:76
processMutations @ js_W7rbNMr8sQ-UQVJlm…zRAGYfQi_AVLk9J1:76

At least on my own site this has completely broken my ability to do page layout work at all - it seems to have broken all of the management liks on the layout page. This is using the gin theme on management pages. This only happens MOST of the time for some reason. And I think only on the pages where I have put in a limitation on the responsive display. I'm still trying to exercise this and pin it down It LOOKS like it is now refusing to find some CSS files.

hmm

Lots of bad behavior with the new release including some PHP errors I do not quite understand

LogicException: The database connection is not serializable. This probably means you are serializing an object that has an indirect reference to the database connection. Adjust your code so that is not necessary. Alternatively, look at DependencySerializationTrait as a temporary solution. in Drupal\Core\Database\Connection->__sleep() (line 1920 of /home/wis/domains/prod.wis.community/public_html/docroot/core/lib/Drupal/Core/Database/Connection.php).

and
TypeError: array_values(): Argument #1 ($array) must be of type array, null given in array_values() (line 229 of /home/wis/domains/prod.wis.community/public_html/docroot/modules/contrib/responsive_layout_builder/src/Form/LayoutBlockSettingsForm.php).

Well, there IS a certain amount of database cruft on this site left over from the recent migration from Drupal 7, so I will try to dig down on this a little more and try it out on a cleaner site. Thanks. It may take a few days for me to get back on this.