Disarm Trap fails on successful roll

[NPC Logger Number 2]

This was the poison gas floor trap in the vampire crypts in the skull crags. My character was in their totem shape.

[Gwenneth_Corvain]

Unless you have rogue-levels this might be entirely intentional and by design:

https://nwn.fandom.com/wiki/Disable_trap

Special: Rogue is the only class capable of disarming traps with a DC of 35 or greater. With 5 or more ranks in the set trap skill a character gets a +2 synergy bonus on disable trap checks.

[Might-N-Magic]

You can recover them, though it will cost you +10 more DC.

[NPC Logger Number 2]

>:( angry face