Failed to comamnd VLAN Mebership - on different switches

[Jefferss]

Hi

I am trying to configure a additional devices on my network, we have over 50 devices and a problem has become apparent whislt configuring the VLAN on new swithces... (so some have accepted the configuraton)

I get an instant error when I save the VLAN settings (Failed to commande VLAN membership ({device} in {Network})

I have multiple VLANs but i only experience this issue on VLAN2.

has anybody else come accross this issue?

Chris