First, the upgrades are great! I especially like seeing when malicious files are added to the quarantine.
There is one problem, though. Each night for the past three nights my userdata_bl_* files (e.g., /etc/apache2/conf.d/modsec_vendor_configs/imunify360_full_litespeed/userdata_bl_agents, et al) have been replaced by empty files.
This happened on all servers so it seems to be a general behavior of the Imunify360 update rather than server specific.