Affected version(s): BIM Server 19, 20 and 21 | Severity: workaround applicable | ID: #229604
Upgrade process of BIM Server v19, v20 and v21 to BIMcloud v21 will warn you on macOS 10.13 with “Can’t find/choose instance.” message.
You can ignore this message. Press OK and continue the process. The upgrade will be successful.