Unexpected EOF in Syslog Notification from Devolutions Server

I recently set up notification in DPS to send "Entry" events to my elasticsearch cluster.

Problem is, there is a strange character in the syslog message that cannot be interpreted by the TCP syslog input, so syslog parsing fails.

Notifications look like this:

The problem is definitely not on the elastic side because I also grabbed the same line with the same symbol via tcpdump.

Out DPS Version is 2023.1.8.0.