In-use spare causes all drives in vdev and spare to show as unassigned under enclosure managemnt

Pulled drive in bay 11 while testing Enclosure management on 12.0u4 (patched for r10). Instead of just single drive going away entire vdev showed as unassgined

pool: tank
state: DEGRADED
status: One or more devices has been removed by the administrator.
Sufficient replicas exist for the pool to continue functioning in a
degraded state.
action: Online the device using zpool online' or replace the device with
'zpool replace'.
scan: resilvered 28.1M in 00:00:01 with 0 errors on Mon Jun 28 14:24:56 2021
config:

NAME STATE READ WRITE CKSUM
tank DEGRADED 0 0 0
raidz1-0 ONLINE 0 0 0
gptid/77101c31-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
gptid/77548b0a-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
gptid/778d1181-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
gptid/78b23826-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
gptid/791328d4-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
raidz1-1 ONLINE 0 0 0
gptid/78305f6b-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
gptid/78e97fd3-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
gptid/7b709c9f-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
gptid/7c3085a9-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
gptid/7ce57e33-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
raidz1-2 DEGRADED 0 0 0
gptid/7b4377e1-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
spare-1 DEGRADED 0 0 0
gptid/7b92df42-a85e-11eb-a65a-3cecef0d68cc REMOVED 0 0 0
gptid/7d2e704d-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
gptid/7c0de90c-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
gptid/7c8b256c-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
gptid/7ca4639c-a85e-11eb-a65a-3cecef0d68cc ONLINE 0 0 0
spares
gptid/7d2e704d-a85e-11eb-a65a-3cecef0d68cc INUSE currently in use

For reference what looks like before drive pulled/after drive reinserted: