locked differential pair in-pad vias move when updating layout

Making PCB Layouts, Manual routing, Auto-routing, Copper pouring, Updating from Schematic, Manufacturing Output
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bdrudolph
Posts: 6
Joined: 12 Dec 2011, 08:53

locked differential pair in-pad vias move when updating layout

#1 Post by bdrudolph » 24 Mar 2023, 07:54

I have some USB data differential traces connected to pads by blind in-pad vias.
The problem I am having is that the vias change position by moving toward each other whenever I update from schematic (other miscellaneous actions also seem to trigger this change).
I have locked both diff pair traces and the vias themselves. When I update from schematic, I tell "don't update locked components". The vias still move. See images below.
Please help, thanks.

Before updating from schematic...
middle layer:
BeforeMiddle.png
BeforeMiddle.png (40.96 KiB) Viewed 1254 times
top layer:
BeforeTop.png
BeforeTop.png (33.39 KiB) Viewed 1254 times


After updating...
middle layer:
AfterMiddle.png
AfterMiddle.png (35.27 KiB) Viewed 1254 times
top layer:
AfterTop.png
AfterTop.png (31.25 KiB) Viewed 1254 times

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