Unable to open Smartthings Classic app on my phone

Was working fine couple of days ago (last time checked on Saturday). Today all I get is a loading blue screen and that’s it. Anything is going on with system? Devices seem to work fine.

I’ve been seeing this on my Galaxy S7 occasionally since around the 1st of the year. I close ST classic in recent apps and then reload it. It almost always comes up the 2nd time. Very rarely does it take 3 tries. Been fine for me over the weekend into today though, loading on 1st shot.