Sometimes you just have sleep on it. The problem was that sometimes in the process of mounting and demounting I accidentally flipped the "roll" manually so when I started the initializing process the gimbal what he thought was up. Great, I´m a idiot hahaha. Now everything is working and the gimbal is rocking sweet!
Having similar gimbal issue for a while..
Taranis output channel 6 maps to RC9. For Tilt, I'm using the side nob for this, wondering if that is an issue.
Output channel 7 maps to RC10 for Pan.. ( I did not configure Roll at all)
Problems is , all seems fine using Radio for gimbal control although tilt keeps going until I bring the side nob back to middle..
So, during Auto mission with ROI, the Pixhawk tries to adjust the tilt which just continues all the way around and gets stuck, as it never stops...
Did you change the gimbal mode or update its firmware?