Have you had a look to make sure the Gimbal mount is all OK??? Sometimes if the Mavic gets a knock, the gimbal mount comes out from under the locating tab at the back, and then just 'flops about' on the rubber suspension bands ...
View attachment 61464
If you can see all the tab, that's OK - but if you can't see it because it's behind the gimbal mount plate, then that's not good ... It is a simple fix to just gently move it back under tho' ...
The tab was in the normal position.