Behavior is the same in incognito, also had adblocker whitelisted for my own domains anyway but was worth a shot. Does not happen on mobile btw, just desktop.
Checking the console:
Uncaught Error: There is no route named adminPlugins.houseAds
When I refresh, the console error pops up after loading the page for a while, but no settings will be loaded. On hard refresh the page loads fine. After a hard refresh, a normal refresh will result in not being able to load the page again.