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Two layer vs multi-layer: Working Layer via selection does not work when routing two layers?

Ulf K

Forum,

Uising PCB Editor 25.1 HF001

When routing a simple two layer board I have two via definitions defined in the Constraint Manager.

But when routing I cannot select any other than the one defined at the top of the Constraint Manager via list (Physical Constraint Set - All layers, column "Vias") . There is no "[...]" entry in the Working layer (small menu) that appears if WL is selected. Only the two layers and their check marks. When opening a multi-layer design with two vias defined, the via select menu [...] appears every time i want to go from one layer to another.

The only way to change via when routing the two layer board is to invoke the CNS, and from there do "UP" or "DOWN" the via list. This is cumbersome.

I have not found any set-up menu item that defines this behavior or in the way the PCB router should not present this via selection when only doing simple two layer boards.

Bug or RTFM?

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