Enable/disable USB tethering not working from within the app sometimes

[anzetal]

Device: Redmi Note 4
OS: Lineage OS 15.1
Rooted with LOS su
vpnhotspot-7953976211293013073.log

When I launch the app and enable USB tethering, it gives a toast saying Neither user 15013 nor current process has android.permission.MANAGE_USB. It then opens the hotspot settings menu. After I enable tethering manually and try to turn it off from the app, it gives the same toast and opens the hotspot settings, but now the USB tethering is turned off.
Here's the weird part:
Now if I return back to the app and enable USB tethering, it turns it on correctly. If I try turning it off, it displays the same toast and opens the hotspot settings but USB tethering has been turned off

[Mygod]

Toggling USB tethering only works if you install this app as a system app (/system/priv-app).

I also observed that sometimes this functionality works following the steps you mentioned. I suspect that this is a bug of Android.

[anzetal]

Alright then. Thanks
Closing this issue