Edit related objects not showing any mock/commits in Docker?

I’m trying to setup Phabricator in docker image. it works for 90% of the functions, but only 1 thing not working: edit related objects in maniphest task:

from the above screenshot, we can see it’s not showing anything, but I do have 2 mock objects as below:

Since the data is there, I would assume the data itself should be alright, but why it’s not showing up in the “task related objects” search?

Thanks for any help.