Tribute lab silver chests bugged not dropping grand spectrums

The silver chest in tribute lab that drops 1 lab unique, is no longer dropping lab unique grand spectrums.

That's true!
I would rather farm lab trove than silver chest at the moment. Silver chest got an indirect nerf/or they are bugged and it's not worth farming Tribute anymore. I had more Grand Spectrum drops in Uber lab (lvl 75). Is anyone gonna look intro it?

I'm a tribute lab runner and I also feel that tribute lab (Eternal labyrinth of Fortune) have a problem with drop rate of GS.

In 3.22 league, I could pick at least 1 GS in average 6 run, but in 3.23 I could not get any GS from silver key or lab treasure. Does anyone here get GS in tribute lab?

I have also ran these labs and not seen any of these drop at all.

The silver chests do drop grand spectrums in tribute. What is currently bugged is the "lab uniques" silver chest reward from tribute lab. This chest used to drop one of six lab uniques (death's door, the scales of justice, steelworm, unyielding flame, winds of change, xirgil's crank) or one of nine grand spectrums. Either the grand spectrums were removed from the tribute lab unique silver chest or its bugged. From my testing its around 1/100 chance for a grand spectrum to be added to a silver chest/trove as "additional" loot. I only did around 500 silver chests so my sample size is pretty small. With this change/bug tribute lab is no longer the best way to acquire these jewels or even worth running as gift/dedication are far less difficult with much better rewards.

I finally got single GS in tribute lab last night. As Deftones said, GS drop rate in silver crate is much lesser compared to previous league. I don't know it is really intended by GGG, but at least it is not worth as before.