If you want a specific VLAN why are you not overriding the VLAN on your Authorization Profile?
Dynamic VLAN Assignment
MS switches can dynamically assign a VLAN to a client device by configuring the switchport to use the VLAN ID received via the RADIUS attribute Tunnel-Pvt-Group-ID. It may be necessary to perform dynamic VLAN assignment on a per computer or per user basis. This can be done on your wired network via 802.1X authentication (RADIUS).
I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.
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