Hey there.
After installing jira on Server:
Centos 8,
NGINX 1.16.1,
PostgreSQL 9.6,
Certbot (Let'sEncrypt)
SSL Cloudflare (Full (strict)Encrypts end-to-end, but requires a trusted CA or Cloudflare Origin CA certificate on the server)
I can get access to my jira in browser, but cannot in jira android app.
Installed on Jira
All needed plugins are anabled, like Jira Mobile, Mobile Plugin for Jira etc.
NGINX configured based on atlassian tutorial. Jira is availabe in all browsers including mobile.
Issue with Mobile App
In Android browser

After clicking "Open in app" or oppenning app and putting my jira URL

Find out some potential problems, tried all of them except
https://confluence.atlassian.com/jirakb/problems-with-logging-in-because-of-missing-headers-or-cookies-981146624.html
If the problem with header or coockies, how to implement a solution on NGINX?
If the problem with Cloudflare, how it should be configured in my cloudflare account?
Issue with trello connect
Always have only this pop-up without any actions.
As result cannot connect Trello to my jira server

Please advise how to fix both issues.
Sincerely,
Roman