I'm having an issue unlocking the Ancient Hunter achievement in Minecraft Dungeons.  I only have 2 achievements left in the game to unlock and this is one of them.  The progress bar has been stuck at 40% for quite some time now.  I've attached screenshots showing that I've defeated at least 16 Ancient Mobs.  If the mob hasn't been defeated then a question mark appears which is not the case for at least 16 of them and I expect I've defeated even more than that over time.

I've also included a screenshot of a suggestion that someone on trueachievements.com mentioned to unlock the achievement, but that didn't seem to work for me either.  For reference, I've included a list of Ancient Mobs that were defeated by my iron golem pet, but the progress bar is still stuck at 40% for some reason:

1. Oozing Menace
2. ????? Mooshroom
3. First Enchanter
4. Unbreakable One
5. Barrage
6. Cursed Presence
7. Grim Guardian
8. Pestilent Conjurer
9. Ancient Terror
10. Seeking Flame

I would have expected the achievement tracker to at least go up to 60% after going this, but it didn't seem to help.  I've also included a link below where you can see many other gamers are having issues unlocking this achievement based on the comments section:

https://www.trueachievements.com/viewcomment.aspx?commentid=1469424#sc1469424

What I'm requesting is for the game to be updated so that a check is put in place to review the Ancient Mobs that have already been completed (no question mark showing) and as long as that count is 15 or more then the achievement unlocks.  Is that possible?  Please let me know if I can help and I will in any way I can.  I'm a completionist and I, as well as other gamers out there, would like to get this one knocked out once and for all!  Thanks in advance for your support!