I cant seem to get the iQ3 Pro mount bracket to fit and hold firm to the J-track. I tighten the nut as much as I dare and while tight, the bracket twists and flips off. Is true Re any other way to mount this thing? I am placing the angle bracket flat against the rear of the J-track and hive tried four or 5 different orientations of the sensor, from flat against the back spine to curved to angle towards the door, nothing holds. Kind of a real annoyance getting stymied at step 1. Door opener is a Liftmaster Professional Formula 1 with pretty standard hardware I believe. Is this what it is supposed to look like or is it a better fit?
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