Deadly Deeds Challenge bugged

I know for a fact that I had 10+ remnants active in two of my expedition logbooks, but I haven't received any credit for them.

https://postimg.cc/XBpL0gWj

Yes, it was lvl 83

Remnants in white font? I can only see 9.

I believe some of them were stacked.

I was curious and went down a dive to see unique modifiers (9 vs 10), but sadly there were 11 unique plus 1 dupe.

Ignite, Poison, Hex, Avoid elemental ailment (twice), Bleed, Penetrate Fire, Cannot leech, Cull, Increased damage, Ward, and Penetrate Chaos.

My first guess would be did you die or instance at any point during the logbook? Like the 10th one popped while you were not in the instance so it didn't give credit. And the challenge check only occurs when the 10th remnant pops.

Second guess would be to a challenge check command (/recheck_achievements) in-game. Longshot, but so was the last one.

Third guess, as I haven't done logbook challenges in a handful of leagues, was there a specific requirement that initiated the "completed" status of a Logbook? Curious if that is the check, something obscure like you need to blow up 15 for completion status, but the counter only hit 14. Or was it just the 10th remnant exploded, here's +1 counter.

Fourth guess is something is bugged and that's going to be more complicated to isolate. Specific modifiers, how the 10th one exploded, etc. Maybe if the 10th one overlaps two it breaks? Overlapped avoid overflows and breaks the counter? Or something else isolated happens. If it does happen again, please screenshot the mods again and include a bug report number so GGG will have a timestamp of that instance.