I noticed only very late that after update to 1.0.7 more operators were blocked and I could not use 2FA OTP by SMS.
I opened issues with those operators and had discussions I should not have.
I could not believe that, somehow, I do not who caused this: the application, some components, some google service, etc. - but at the moment I don't care anymore - an application decides by itself to block some operators.
That will not happen again.