metadata_out_of_date and sugar keep re-loading

After I Quick Repair and Rebuild I saw some error in inspect tool:

Sugar re-loading once by itself, if error occur every click change modules and edit data look like every click at first time then it gone.

How can I prevent this event ?

Structure of our Sugar in web serve:

- load balance with 2 nodes master and slave

- node 1 and 2 separate but same instance, ignore cache file

- same database

- jsmin 1.1.0

Sugarcrm Ent 7.7.1.1

Thanks,

May