Just sharing my oberservations...
I have a Poco f2.
Installed crdroid which has KSU installed .
Suddenly, gpay didn't work etc. needed an updated play integrity fix which was updated yesterday.
Installed that...
Cpf app gave issues (some app verification not working) singpass said I'm rooted etc. dbs paylah also didn't work.
Installed all the zygisk next etc and eventually gave up because I really need these apps.
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Fully flashed back to stock. Did TB checker and had a strong integrity pass! My bootloader is relocked.
Restored my settings and CPF, DBS still didn't work... Like wtf? My phone is pristine stock condition! No root etc.
Then... I tried a lame thing, I disabled developer settings and tada... It worked.. try it guys, it may give you wonders.
For DBS paylah app, Everytime you try, please clear data! Then u relaunch. Only the first load from my experience, will show you if it is having problems with insecure device.
Edit: fun fact, I reenabled developer tools and the apps started making noise
Somehow DBS digibank keeps logging me out too