Library history missing on Seahub

Hello guys,

I am checking files on Seafile and I accidentally found one of my library(named ‘Bulk’) has lost almost all history activities. Here is the screenshot,

I logged into the server and manually check the database seahub_db, table Activity. I used SQL ‘select * from Activity where repo_id = ‘9912f20b-8f8d-4ee0-b948-2ab8e184e683’’ and I found all records are there. See screenshot,

It is a very confusing issue. I have checked all logs and didn’t find any errors. Only this library lost its history, others are fine.

I am wondering if anyone deal with this before and I really don’t know how to debug and solve this glitch🤨