Javascript failure since upgrading from 5.2.1 to 5.2.3

Hello,

I have just upgraded from 5.2.1 to 5.2.3 and now all my Javascript rules are broken!
This is what I get in the logs:

time level bundle message
16:27:11.427 WARN org.openhab.core.karaf.internal.FeatureInstaller The transformation add-on ‘javascript’ does not exist - ignoring it.
16:27:50.545 ERROR org.openhab.core.automation.module.script.internal.ScriptEngineManagerImpl ScriptEngine for language ‘application/javascript’ could not be found for identifier: 9ccbaa5a-2cf6-4a4f-92f1-3adfeace955b
16:28:50.545 ERROR org.openhab.core.automation.module.script.internal.ScriptEngineManagerImpl ScriptEngine for language ‘application/javascript’ could not be found for identifier: 9ccbaa5a-2cf6-4a4f-92f1-3adfeace955b
16:29:00.167 ERROR org.openhab.core.automation.module.script.internal.ScriptEngineManagerImpl ScriptEngine for language ‘application/javascript’ could not be found for identifier: 9ccbaa5a-2cf6-4a4f-92f1-3adfeace955b

Did you see this as well?
What did I miss in the announcements?

Hum… strange…
Removing the Javascript plugin, adding it back in, restarting openhab5 and this works again.

A simple restart was of no help.