SP2019 Server Quick Launch Nav missing on Modern sites after Aug CU patch install

[David Graham]

Installed KB4484472 yesterday on SP2019 Server.  Users today started to complain that the Quick Launch navigation on Modern sites is no longer visible.  Is anyone else experiencing the same issue and have you been able to resolve the issue?  It appears that Chrome and IE browsers are only affected.  Using Edge browser seems to display the navigation.

This is the expected look:

This is the current look:

Thanks in advance for any insight into this matter.

[#2]

After updates KB5002212 (SharePoint Server) and KB5002108 (Language Pack) I stared having the same problem. My farm have 2 Front End: only one is affected by the problem (401 on _layouts/15/SPAndroidAppManifest.aspx). Does anyone found a solution?