Check out the attached clip. Is this a wind gust, or is there something wrong with the gimbal? It WAS pretty windy and gusty, but I thought the gimbal would compensate. Please excuse my lack of expertise in properly including video here.
A wind gust that strong would have also blown the craft, certainly enough to interfere with its flight trajectory, but I could not see this when I looked, the flight looked smooth. So based on that i would say its a gimbal error.
This is a weird one but i had an issue like this once and what was happening is something was restricting the gimbal when I powered the drone up (in my case, I had it on a landing pad on uneven terrain and a little bit of the cloth of the pad wood restrict the gimbal when it did it’s initial calibration).