I have a SharePoint 2019 Farm (Single Server) that we are using to evaluate an upgrade from 2013. I set up a new communication site and customized the theme and installed a number of apps. Recently, I applied some server updates to the server, which included some SP2019 updates. Since the updates, any Communication site I create makes the "Home Page" not able to edit. There is actually a "DENY" permission on my user account. If I make another page the Home Page, I can go into the original page and edit it, but as soon as I set it to the Home Page again, it becomes locked.
I can not find any settings that would do this. Prior to the updates, I could edit the page from the home screen. As far as rendering, on the Home page, it does not even render the command bar and when I look at the code-behind using F12, there are two specific errors:
Uncaught (in promise) TypeError: Cannot read property 'hasAllPermissions' of undefined Uncaught (in promise) TypeError: Cannot read property '_currentElement' of null
This does not happen in the page if it isn't designated as the Home Page.
I have been searching the internet, but it appears that nobody has had this problem.