Sounds like your board file may be mangled and has missing layers. Look at your board file's layers and make sure you have layers
1 Top
16 Bottom
17 Pads
18 Vias
-j
Sounds like your board file may be mangled and has missing layers. Look at your board file's layers and make sure you have layers
1 Top
16 Bottom
17 Pads
18 Vias
-j