update fails

Acronis Cyber Infrastructure: update from 3.0.5-69 to 3.5.x fails with "Cannot generate certificate: touch: cannot touch '/usr/libexec/vstorage-ui-backend/.rnd': Permission denied"

Attempt to update a cluster from 3.0.5 to 3.5.3-x version failed with 'Internal error' in UI and shortly after that cluster nodes started to be displayed as 'Offline' and cluster state is 'Unavailable' on main WebCP dashboard.

File /usr/libexec/vstorage-ui-backend/.rnd is owned by root user:

[root@node01 ~]# ll /usr/libexec/vstorage-ui-backend/.rnd
-rw------- 1 root root 1024 May 21 00:47 /usr/libexec/vstorage-ui-backend/.rnd

Acronis Cyber Protect Cloud: Local agent update fails with "Fatal error during installation. The older version of this product cannot be removed because it seems to be corrupted."

Symptoms

When running a local agent update on Windows, the update fails with: "Fatal error during installation. The older version of this product cannot be removed because it seems to be corrupted."