Yes, that's exactly the same for me. Won't load in Secure Folder anymore without getting that error. Installed out in the open and it loads fine, but then needed to go to the bank with passport, Bankbook and phone number in their system to receive OTP. They filled in some form then could set it up again on the phone outside Secure Folder. Sucks as had waste over an hour in the bank for no reason. No customers in the bank, but took so long to go see them at the counter. Pissed me off. Dealing with them in-person is a horrible waste of time. And it sucks that you can't have the App in Secure Folder anymore by the looks of it. They want the App out of Secure Folder so it's less secure and available to anyone who has your phone unlocked. Secure Folder gives and added layer of security for banking apps, but this seems it can't be done anymore with Krungsri.