Channel search by nicknameContainsFilter sometimes not working

[Problem/Question]

We have an app where multiple users can use the same sendbird user.
We have a feature with search channel by nickname.
Search channel by nickname works for most of our users, but one reports an issue where a channel doesn’t show up. This channel shows up for other users accessing the same sendbird account.
This seems very strange, is there any reason this could happen?

[UIKit Version]
3.15.12

[Reproduction Steps]
Use GroupChannelList, pass param to channelListQueryParams

[Frequency]
Seems random?