Shorts due to Via Stiching

[steven4601]

Hi ,
In a (nearly) finished 4 layer design, adding via stiching ignores most of the traces & planes.
This results in a short-circuit pile of rubbish.

The worst part is, the short circuits are not detected by the DRC or online DRC checker tool.

  Altium


What did I do wrong?

[Just1]

Hello,
What version of Altium Designer?

[julianhigginson]

owch!

that's a good reason to ring AD support, I think... send them the files if your kind of work permits it, and get them to figure it out.

[Araho]

Those vias don't look like they're all the way from the bottom of the board to the top? Have you ensured that they are actually all layers and not buried / blind vias?

[steven4601]

Hi,

The Vias are from top to the bottom.   I managed to fix it , atleast for a while is to close AD, then start it again, first thing add / recreate the via stitching and hit generate gerbers 
Ill talk with my manager if I can send the files to Altium support for investigation. But it looks like a pretty good bug.  The DRC being completely happy with it scary as F$CK.

//Steven

[julianhigginson]

Altium loves a good restart every now and then... Unfortunately it takes ages to boot, so you aren't so likely to do it on a deadline..

Also, never ever release a board without a nice close look at the Gerbers after exporting them. Normally they are fine, but the one time they're not you'll really wish you had...

[blackfin76]

This may sound very obvious but are you sure your design rules are set up properly?