[CA] [CA11] EV1 sensor core mount defect

[basta350]

recently installed an EV 200 AP Sail system and found that the mounting design for the EV1 sensor core was very frustrating. The top part is supposed to 'clip' off and on the lower unit, which would then hold the sensor core nestled in place. It was supposed to 'clip' together, or apart, but the small plastic tabs molded into the plastic unit are inflexible and make it impossible to 'clip' in. The design on the unit i have also does not allow it to 'rotate' into place. 3 of the 4 small tabs broke off in the process of trying to mate the upper and lower pieces together. Has no one else encountered this issue? I see no threads mentioning this?
Doug Nicholson
Seattle Wa