During the installation of Acronis Backup Cloud on MacOS Sierra 10.12.1 the following warning appears:
Incompatible operating system
Agent for Mac may be incompatible with the current operating system. Agent for Mac is fully compatible with OS X 10.8 through 10.11.
You can ignore the warning, click OK to continue installation. The warning will be removed in the next update.
Note: This is applicable to machines with HFS+ file system, APFS is not currently supported.