Possible bug - Jynx raid results

There seems to be a specific issue (for me at least) when running simulations for Level 3 Jynx raids, sorted by TTW. Oddly, I can run simulations for a Tier *4* Jynx raid, or sorted by Estimator, or Tier 3 legacy raids for other pokemon - but this one niche combination seems to consistently throw up a error.

I've reloaded, cleared cache, reloaded my Pokebox - same result. Is this just me, or is this a bug?