Most GUI modules fail because they can't correctly parse the AT commands for your specific modem. You will fall back to terminal commands.
Cause: Google now checks for ro.ril.oem.imei mismatches.
Exclusive Fix: Install Play Integrity Fix by chiteroman alongside the IMEI module. Then add this line to custom.pif.json: change imei with magisk exclusive
"spoofBuild": "1",
"spoofSignature": "1",
"debuggable": "0"