No, what I mean is that stripper manage entities before map load. (don't know if this is the exact moment)
You can't use stripper to remove, for example, some entity that you created by a plugin
So this logic applies to vscript too.
All these new "invisible walls" are added through vscript files when the map starts
So one of the ways to fix that is using the vscript replacer plugin and removing that section that creates new entities.
You can check the original code here: (maybe is not updated but is almost the same)
https://github.com/Tsuey/L4D2-Commun...v_mapfixes.nut
Note: BTW I think stripper need some updates yes but not related to this stuff.
Sometimes I wasn't able to remove a medkit cabinet by classname,
also remember some toys like elephant not being able to delete too, and removing an output/input looks like removing them all.
And a post/pre global files would be nicer too.