GND VIA 하나를 지우는데 2분 39초가 걸리네요...

사용자가 불량인지 셋팅이 잘못된건지...

ROUTER에서 GND VIA 삭제를 하는데
GND SHIELDING 목적으로 루프된 NET도 전부 삭제가 된다는것이 문제..
막연한 도움 요청 드립니다.

PCB파일은 22M

Part Types:        130
Parts TopSide:      851  BottomSide:    676  Total: 1527
Drilled pads:      93    Undrilled pads: 5603  Total: 5696
Via Name : STANDARDVIA  Via Count : 2142
Via Name : VIA1-3  Via Count : 670
Via Name : VIA1-4  Via Count : 3475
Via Name : VIA7-10  Via Count : 3607
Via Name : VIA7-8  Via Count : 290
Via Name : VIA9-10  Via Count : 1066
Via Name : VIA4-7  Via Count : 2057
Via Name : VIA3-4  Via Count : 1352
Via Name : VIA8-9  Via Count : 82
Via Name : VIA1-2  Via Count : 914
Via Name : VIA8-10  Via Count : 273
Via Name : VIA2-3  Via Count : 668
Signal Nets:        897
Connections Routed: 3300 Partially 1019 Unrouted: 237  Total: 4556

Plane  Nets:        0
Connections Routed: 0    Partially 0    Unrouted: 0    Total: 0

Routed Connection Length (cms)  X: 2360.234 Y: 2558.260 Total: 4918.494
Unrouted Connection Length (cms) X: 446.962  Y: 407.925  Total: 854.887

Number of copper clearance errors:        0

Number of Routing Layers:                  10
Size of Board (square cms):            274.912
Equivalent IC count (1-IC/14 pins):        406.86 
Board Density(boardsize/14pin-components): 0.68