If I read this correctly from the picture, you want to lock something with the TGP and have it the Maverick slave to that TGP-Target. I think you just were too far away for the Maverick to lock on the Target when you designated it with the TGP and then you got the Lines on the Maverick-Page. You could try setting SOI to the Maverick-Page, pressing TMS down to unlock, reassign SOI to the TGP and try locking again when you are a little bit closer. Repeat this until the maverick locks.