Clpudflared access remotely via android app

On fresh install, setting up the HA app to point to my custom domain, I login via Cloudflare and everything works.

After a few days it stops working, on opening the app it either hangs or moves me to chrome where it opens 20 or so tabs all showing “Invalid session” error from Cloudflare.

Deleting and reinstalling the HA app fixes this.

Any ideas? Thanks!