If you rooted and used the old patched image you will have issues.
If you lost root when your updated.
You would fastboot boot boot.img(magisk patchedimg) then when phone boots go to magisk manager and do direct install(ignore magisk not installed or needs to reboot etc message) after direct install reboot. This will patch the new rims boot img instead of using say .12 s boot img that would give you issues with Bluetooth or wifi etc
So to fix your issue I would download the software update apk from a13 dp1. Download a14 rom from oxygen updater and do local update with that app.(don't reboot in software updater. Then open magisk and select patch to inactive slot and hit reboot in magisk after