Dear Rudi,
kindly do following
1) take a backup of your objects.
2) delete view from sql server
3) now, synch View from AX
if issue is not resolved by above, that means something wrong with query of view and that needs a manual fix. Usually it is recommended to add only those fields which are needed i.e keeping fields Dynamic=No in query DataSources.
This will make understandable the query and also it will be good for performance.