Not able to login to ssl web console on 1.37.46

[Pjoms]

I need some assistance here please...

After upgrading från 1.37.40 to 1.37.46 I am not longer able to login to the web console through lets encrypt ssl on Nginx Proxy Manager.
I came to the login screen and after entering the right user and pw I just return to the login screen again without any errors.
If I enter wrong user/pw I get error message as expected.

Here comes the strange part.
1. If I navigate directly to the server IP-adress I am able to log in correctly (without ssl)
2. If I check the log after an failed login without error I get Login successful for user "xxxxx"
3. I have two more users, one for Ninja and one for Home Assistant. Both connects through the same ssl adress on Nginx Proxy Manager and works fine.
4. If I try to login to web console using the Ninja or HA user I don´t get in, and no error.
5. I have another test installation of ZM at 1.37.41 that is working normal.
6. I have tried different browsers on my normal Windows 10 computer (Chrome and Edge), cleared cash, tested Chrome on my Android phone (wifi and mobile data) and Firefox on a clean Ubuntu install. Same thing...

What can I do...?

[Pjoms]

I updated my test installation to 1.37.46 and that works well after updating.
Something must have went wrong during the first update...

[Pjoms]

Rolling back to 1.37.40 and everything starts working.
Upgrade again to 1.37.46 and same thing happens again, not able to login to web console through ssl and Nginx Proxy Manager, but logging in directly to the server IP-adress works...
ZM+ES installation is done following official documentation and has worked for several years.