I got a message event with the following, which seems to apply to any repository imported with ImportFBS.exe and had triggers on the Vault repository which is stored on that same server.
Repository
UnitTestcodechange cannot be initialised: The property does not have a value. vault.exe might not be installed
I checked http://{Continua}/administration/ci/collectors to confirm the lookup value. I then confirmed the vault.exe file is in the correct directory. There doesn't seem to be any way to distinguish if continua has found a match for that configuration.
I checked http://Continua/administration/ci/agents/matrix and confirmed all the projects have ticks against. I assume this means that they are all considered valid.