Operating System:
Windows 10

ISP:
Charter

Type of Internet Connection:
Cable

Internet Connection Speed:
335.3 Mbit/s Download, 4.27 Mbit/s Upload

Date & Time:
March 22bd, 2023
9:35 PM CST

Frequency:
Almost Always

Character Name:
Elliander

Race:
Race of your character when the issue occurred.
TarutaruM

World:
Siren

Main Job:
WHM, Level 96

Support Job:
Black Mage

Area and Coordinates:
Toraimarai Canal, Map 2, (E-9)

Party or Solo:
Solo

NPC Name:
None

Monster Name:
Blackwater Pugil

Steps:
Detailed steps on how the issue occurred.

1.) Go into the Canals solo.
2.) Summon trusts to fight with, including Trust: Semih Lafihna
3.) Enter the parts with low ceilings (i.e. in the waterway tunnels, but it also happened in other parts of this zone)
4.) Begin auto attack of any monster.
5.) During combat Semih Lafihna will try to stay at a distance during the mob and during this time appears to have a chance of clipping through the ceiling. It doesn't happen all the time, but it happens fairly often. I don't know if it's related to what may be above the ceiling or some other factor. It never seems to occur while close to the player and seems to happen more frequently when I am running through the tunnels attacking one mob after another in a sequence so the player moving farther from her when combat starts might or might not be a factor.
6.) While Semih Lafihna is in the ceiling she cannot be targeted with spells. I tried casting Haste on her and the error I received was "Elliander cannot perform that action." however no such error occurs when she is not in the ceiling. More critically, I also got that error when trying to cast a cure on her. Being in the ceiling doesn't appear to prevent her from attacking enemies or being attacked by them, but it does prevent me from interacting with her.
7.) After the battle is concluded she immediately returns from the ceiling.

What you were doing when the issue occurred.
Battle