If your account registered with one number then it only allows self transfer in all banks with same number in every app even in paytm, phonepe, google pay.
The self transfer isn’t working properly when I try to select the bank from which I wanna transfer it doesn’t allow me to choose and selects the first bank account by default.
@gabey14 i was facing this issue as well. However, after the latest app update the issue got resolved. If you are on the latest app update, share this with the support team so that bug can be reported & get tracked to closure