[Paraview] Loading state file - not loading the connections to each inputs port

[michal wozniak]

I have a state file which contains multiple filters, some have multiple inputs port. When I load the state file everything load correctly but every filter that uses multiple ports (input) get this error "Input port (1,2,3,4,...) of algorithm "random name" has 0 connection but is not optional. 
If the filter instead uses multiple connections to one port then it gets loaded correctly. 

Can multiple port connection be saved in the state files? 
thanks you 
Michal 		 	   		  
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