Hi,
In our Quick Launch we have links to certain Lists, Info Path Forms, Powerapps Forms among other links. When our users click a link to a Sharepoint Custom Powerapp Form that is saved in the Quick Launch it takes them to https://<Tenant>.sharepoint.com/_layouts/15/listhost.aspx and the page after about 30 seconds will time out and returns: Error code: Out of Memory.
THis happens in Edge and Chrome.
This also happens for a link to a saved list view in the quick launch.
Strangely if I copy the link and manually go to it or open the link in a new Tab the form and list load instantly. This has only started happening within the last week.
For both links when it gets to listhost.aspx i get the below error logged in the console.
Uncaught TypeError: Cannot read property 'querySelectorAll' of null
at Function.t._queryFocusableSelector (sp-pages-assembly_en-au_c2ba82505d0b58b27a6e436327d1acb5.js:1)
at Function.t.getFirstFocusableChild (sp-pages-assembly_en-au_c2ba82505d0b58b27a6e436327d1acb5.js:1)
at chunk.sp-command-bar-deprecated_en-us_1b41146a17894f5e5334.js:1
Any Help would be greatly appreciated.

