Jubilee line DMI/Signalling problems?

[AndrewPSSP]

Since last evening I've noticed the platform dot matrix displays, at least between London Bridge and North Greenwich inclusive, have been displaying generic messages, such as "JUBILEE LINE : GOOD SERVICE" or "PLEASE KEEP YOUR LUGGAGE WITH YOU AT ALL TIMES".
The ones I saw at Canary Wharf earlier simply displayed "please check front of train for destination", a la the SSR, and the one at London Bridge was just blank, save for the clock.

Does anyone know what's happening? I presume there's something wrong with the signalling system that's making them display these messages.
I'm fairly sure the Northern line uses the same ATO system, and its displays are still working, even the ancient one at London Bridge.

[Deleted]

They may be the same signalling TBTC but they have there own control centres thus different machines controlling them.

The DMI’s are fed from a non safety system which look after other things but Im sure its been reported and will be getting looked at

[d7666]

All the CIS systems have default DMI messages if they lose data feeds. These can vary a bit, it depends if the feed is lost to a single sign or site or from a complete outage, and can vary from line to line. I can't say what the JL messages are. As has been said, each line has it's own control centre where raw data feeds are usually generated; the signalling kit at each varies, the central CIS kit at each site varies, the kit at each station varies, nice that it would be to have a universal standard alas technology and changing standards and project drift (and descoping !!!) over protracted time periods that run into decades means we don't and probably never will. The same is true of the internal trackernet system; the end users may perceive something universal, but believe me every line's raw data originates in a different way from different kit through much software twiddling to get there.