I can't test the theme on my phone!

I can’t test the theme on my phone!
I have the version:
Galaxy Theme Studio:
Smartphone: Galaxy Note10 + SM-N975F, Android 10, N97FXXS2BTA1, all updated.

I send the theme to the phone and the phone does not appear! Although the Galaxy Theme says it was installed successfully.
Until another day, before the last program update worked!

Make sure you have USB Debugging turned on in the developer settings and don’t use the same package name. Also keep the Galaxy Themes app open when you click “Apply to Device”