Investigate non-deterministic ghost participants

[GreatTA1998]

Happens most often on 0.000, but in other classes as well.

[GreatTA1998]

It's a rare event though - something with low probability, so can be a timing issue where the code is 99% right but 1% wrong

[GreatTA1998]

Potential fix is to have the of truth be from Daily, rather than Firestore participants