Well, good, I'm glad Magisk was the key. About Tide, a couple of things come to mind:
1) uninstall Tide app
2) download ccleaner or some other app that will thoroughly clear out your cache. Your Tide app may be remembering that at one time, you were only half-rooted. Figure out the best way to remove every vestige of Tide; there may be a better app for this other than ccleaner
3) reboot
4) reinstall Tide, but BEFORE starting it, check with Magisk that Magisk is safely hidden from Tide app
5) start Tide with fingers crossed
If this fails, I'm out of ideas for the app. However, can you access the Tide account through a web page? That's how I bank, I don't do the app.
Best of luck,
Jake