Sure,
I am running it on Heroku Hobby Dyno. I followed the setup instructions on
https://docs.nodebb.org/installing/cloud/heroku/
For the most part its been a successful installation this is the only issue I've had and it's running NodeBB version 1.13.1.

I don't think it's the cache I tried on multiple browsers and devices.

Hi,

I have slick theme set as my [current theme]. Everyday (after about 20-24 hours) I come back to the forum page it returns to the Persona[default] theme.

The weird thing is in Appearance > Themes it shows Slick Theme is the current theme even though home page shows Persona. The only fix is I have to keep pressing Rebuild & Restart button.

Sam