Distributed setup giving errors since update to 116100

Hello,

Since upgrading our monitoring env to build 116100 our admin server is reporting that it can no longer contact the Managed servers. But nothing has changed to the network, these servers are running fine and we can connect to them directly.

Also, the polling of data is working according to the status. However we get these errors in the EESyncErr.txt logfile:

SYNCERR: Unknown column 'ALERT.SOURCE' in 'where clause'
java.sql.SQLException: Unknown column 'ALERT.SOURCE' in 'where clause'
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:1990)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1160)

What is going wrong here?