Couple things about tombs aside from the obvious issues

[Idly]

Firstly please remove locked crates from the loot table, rerolling from an elite planar chest is quite irritating.

I dont know if this happens to anyone else or just me
And another thing, again maybe its just me but tanks seem to get a lot more ancient essence than anyone else, from my runs it seems like 3-5x more on average with rogues receiving the least.

[Sir Lubo Penev]

And another thing, again maybe its just me but tanks seem to get a lot more ancient essence than anyone else, from my runs it seems like 3-5x more on average with rogues receiving the least.

Curious as it is, I noticed the same thing. During 3 consecutive runs with the same party tank got 3 essences, another party member got 1, the other two got zero. It is a tiny sample though.

As for rogues - I have more fragments than essences. If I include failed runs, the drop rate for me is probably about 1 essence in 2.5-3 runs.