open door restricted

For some reason an open door that has default allowed access both ways at some point does not allow dupes to pass. Reloading does not resolve it, only clicking the arrows to deny and allow access makes doors accessible again. Unfortunately I don't know "when" it  happened, only have a save of a few previews cycles. Although the doors are open and not restricted to any direction, if a dupe is led in, can't get out.

Note: several cycles ago I "retired" a dupe between those doors by denying access only to that particular dupe (doesn't seem that it can be reproduced that way). But I didn't change door restrictions otherwise

unreachable.sav

cycle 26.sav