fix for contaminants not processing if air is OK otherwise

also a small fix for VV

Signed-off-by: Mloc-Argent <colmohici@gmail.com>
fix for lighting subarea GCing

Fixes #6102 and related issues

Signed-off-by: Mloc-Argent <colmohici@gmail.com>
Merge pull request #6270 from Mloc/bs12-power

Fixes for #6102 and contaminants