Zones not filling anymore (with KiCad 6?)

[osterchrisi]

I have a project where I work on a panel with nine small PCBs in a 3 x 3 grid. Each small PCB has its own GND net and zone. This project and board were created with KiCad 5 still. It seems that now, since it became a .kicad_pcb file, the zones don’t fill anymore. Is there anything to look out for?

This is the old board (note the warning about it being the old format):

This is the “new” board which doesn’t fill anymore (note the GND netsrast lines):

I changed no settings of the zone or anything, left everything the same…

Thanks!

PS: I already tried to change “File > Board setup > Design rules > Constraints” – “Zone fill strategy” from Smoothed polygons to Mimic legacy.

[BobZ]

Did you try hitting the B key to refill zones?

Did one of the zone vertices become relocated off grid so that the zone is no longer closed?

I am using 6.00 and have no issues with zones filling.

[osterchrisi]

Oh of course I hit that B button hard! And as I said, I didn’t the touch the zones a single time, not sure if a vertex could still get relocated? I also get no error message or anything in the DRC - or is there anywhere else I could look out for information about the zones not filling…

[gkeeth]

If you can share the project it may be easier to help.

[Seth_h]

Make sure that you are displaying filled zones:

[osterchrisi]

Huh, okay… I worked on the PCB some more time - unrelated work, changing footprints, making traces, … - and now it works again… Now I can’t replicate it anymore…

[hermit]

I once had a bug that was aggravating and 100% repeatable that didn’t exist after I restarted the program.

[osterchrisi]

I have of course restarted both KiCad and PCBnew itself before posting here (actually several times) but it didn’t help at that time… The changes I made in the meanwhile where only on four of the nine boards on the panel and each small board has its own zones, so I don’t think the changes - which also weren’t zone related - had anything to do with it…

[antto]

my nose tells me your net had an auto-generated name, and it received a different name in v6, so the zone no longer matched

[osterchrisi]

No, net names were given by me and stayed the same. Checked that too! But good thought nevertheless.