What aircraft are known to be incompatible with the Weight & Balance feature?

At this time, ForeFlight does not support the aircraft listed below within the Weight & Balance feature due to the complexity of the Weight & Balance information required for the aircraft.  

NOTE:  The list is not a complete list of incompatible aircraft.

M

Mitsubishi MU-2 (Unable to set up complex flight envelope and a separate envelope is required for landing.)