Kingsmarch shipping bug (deletes shipment)

I entered Kingsmarch.
I set the destination of each ship to Ribenfell.
I then entered 1/3 of ALL my total resources (Bars, crops) roughly equally between the ships.
I then clicked "set sail" on each ship in quick succession.
only ONE ship set sail.
The rest returned to a base state, waiting for me to "select a shipment -- minimum shipment required", and deleted all the resources I had placed on those 2 ships.
roughly 70% of my resources were deleted by this bug.