While trying to reproduce those issues again to send you guys the files, i noticed which were their causes.
In the case of the
WC1.1.2 map it was that there was a hidden triger_once triggering to the door hidden in a secret (the MH one) afar from the door, so that explains why sometimes the door wasn't open and sometimes was. It was hidden near some busy brushes so it took me 17 years to find it.
In the case of the recent map, it was just a case of cross-connected entities, which plagued too my second map for sm175. Since them i stopped placing simmetrical rooms in 0,0,0