I have discussed this with you a couple weeks ago when I brought up the light effect + lift problem...not only does that affect lifts but also key and weapons pillars, which could force the player to noclip if the key/weapon is not brought down for grabs.
This should be fixed now (in SVN), since sector tags are now set
independently of sector types, hence lowering floor tags will not
be clobbered by lighting effects in the ceiling.
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Pillar fail
This should be fixed now (in SVN), since sector tags are now set
independently of sector types, hence lowering floor tags will not
be clobbered by lighting effects in the ceiling.