Error with cartridge 5.9.3.20 and MySQL 8.0.14 enterprise

Hi guys,

Has anybody tried to monitor a MySQL 8.0.14 enterprise database with MySQL Agent cartridge version 5.9.3.20?

I'm not having any luck, trying multiple permutations of configuration, including skipping start test.

Generally logs show:

2019-04-12 15:50:32.520 ERROR   [FglAM:IncomingMessage[5]-78] com.sma.mysql.agent.VersionInfo - An unexpected error occurred which may cause undesired behavior. You may want to contact customer support if you see this error again:  Error retrieving server version.

I thought I'd ask here before cutting a support ticket.

Many thanks!

John