Daniel, THANK YOU! I have applied Ubuntu Updates to the affected machines here, and then turned the splash screen back on. Knock on wood, the issue isn't happening any more.
Also: another bug is gone also, it seems: Ubuntu #1897185 regarding suspend during startup after entering the login password. This was occurring at approximately the same point in startup (anecdotal observation) as the spinning logo. I'm wondering if they were/are related?
Again, thank you!
Update as posted upstream at Plymouth:
Daniel, THANK YOU! I have applied Ubuntu Updates to the affected machines here, and then turned the splash screen back on. Knock on wood, the issue isn't happening any more.
Also: another bug is gone also, it seems: Ubuntu #1897185 regarding suspend during startup after entering the login password. This was occurring at approximately the same point in startup (anecdotal observation) as the spinning logo. I'm wondering if they were/are related?
Again, thank you!