Importing netlist removes all BGA vias

We're way behind on updates and a recent one was finally installed. Now when I import Logic it removes all the vias under my BGA.

I tried fixing the part and vias but I get this error if I don't check the Ignoge Fixed property. The part nor the schematic symbol hasn't changed from when I initially laid out the board months ago.

So it either tears up  all my vias or won't come in.

#1   ERROR(SPMHNI-175): Netrev error detected.

ERROR(SPMHDB-195): Error processing 'U31': Cannot modify element; the object or a parent has the FIXED property. [help].