Copper pour not filling in small zones, no matter the clearance

I have another situation where the copper pour does not fill, but I do not find out why. I do not see that these zones are inside any other keepout as in the previous situations, so I am confused as for the reason now. @slc @paulvdh any ideas? Board is attached here GR106772-A.kicad_pcb.zip (3.0 MB) . I have tried setting high priority, but still not.

They are these two regions here on F.Cu:

plus a small one in the corner: