I’ve had no lucky with my 7 digit exports and can’t find anywhere to reset them, but it seems these services only use authy for totp.

For my 6 digit ones I was able to export them all and move apps with this guide

https://gist.github.com/gboudreau/94bb0c11a6209c82418d01a59d958c93

There’s also a YouTube video here:

https://m.youtube.com/watch?v=n7ruB_uFcj4

One issue I had was authy kept trying to auto update from the old version any time I was in the setup process and it would cease to function, forcing me to restart it, and then it was updated.

All I did was go to the appdata folder in windows where it was installed and I found different folders for the specific version and I just opened a terminal there and ran it with the argument defined in the guide and it worked fine.