After an upgrade to Version: 18.1.0 Build: 436 (which actually turned in a complete reinstall after the upgrade failed multiple times), I can no longer connect more than one account on my Mobile device.
Mobile device is Nexus 5
Anriod Version 6.0.1
GMAIL Version 8.12.30 230564275 release
Way to duplicate problem.
Add an exchange account and connect to GMS server. This works fine for the first account. It's irrlevant which account is first.
Add a second exchange account with a second account on the same GMS server or another GMS server and the account will be created and it appears that both are syncing.
After a few seconds, both accounts will disppear from the accounts listed in the phones settings and you have only the gmail account left.
As long as you only add one account, it will work.
I used to have 3 accounts when using 2014.SP2 of the GMS server with no problems.
Does anyone have any ideas on what the problem might be?