I'm also seeing this issue on a Thinkpad X1 Gen 6-
$ dmesg |grep magicmouse [ 4650.889726] magicmouse 0005:05AC:030E.0009: unknown main item tag 0x0 [ 4650.890454] magicmouse 0005:05AC:030E.0009: input,hidraw4: BLUETOOTH HID v1.60 Mouse [A1339 trackpad] on b4:6b:fc:f3:79:96 [ 4675.733322] magicmouse 0005:05AC:030E.000A: unknown main item tag 0x0 [ 4675.734254] magicmouse 0005:05AC:030E.000A: input,hidraw4: BLUETOOTH HID v1.60 Mouse [A1339 trackpad] on b4:6b:fc:f3:79:96 [ 4971.850262] magicmouse 0005:05AC:030E.000B: unknown main item tag 0x0 [ 4971.851130] magicmouse 0005:05AC:030E.000B: input,hidraw4: BLUETOOTH HID v1.60 Mouse [A1339 trackpad] on b4:6b:fc:f3:79:96 [ 6591.909033] magicmouse 0005:05AC:030E.000E: unknown main item tag 0x0 [ 6591.909763] magicmouse 0005:05AC:030E.000E: input,hidraw4: BLUETOOTH HID v1.60 Mouse [A1339 trackpad] on b4:6b:fc:f3:79:96
Please let me know if you need me to provide additional information.
I'm also seeing this issue on a Thinkpad X1 Gen 6-
$ dmesg |grep magicmouse 030E.0009: unknown main item tag 0x0 030E.0009: input,hidraw4: BLUETOOTH HID v1.60 Mouse [A1339 trackpad] on b4:6b:fc:f3:79:96 030E.000A: unknown main item tag 0x0 030E.000A: input,hidraw4: BLUETOOTH HID v1.60 Mouse [A1339 trackpad] on b4:6b:fc:f3:79:96 030E.000B: unknown main item tag 0x0 030E.000B: input,hidraw4: BLUETOOTH HID v1.60 Mouse [A1339 trackpad] on b4:6b:fc:f3:79:96 030E.000E: unknown main item tag 0x0 030E.000E: input,hidraw4: BLUETOOTH HID v1.60 Mouse [A1339 trackpad] on b4:6b:fc:f3:79:96
[ 4650.889726] magicmouse 0005:05AC:
[ 4650.890454] magicmouse 0005:05AC:
[ 4675.733322] magicmouse 0005:05AC:
[ 4675.734254] magicmouse 0005:05AC:
[ 4971.850262] magicmouse 0005:05AC:
[ 4971.851130] magicmouse 0005:05AC:
[ 6591.909033] magicmouse 0005:05AC:
[ 6591.909763] magicmouse 0005:05AC:
Please let me know if you need me to provide additional information.