Darkshrines' shrine effects in Lab don't stack?

I think this is a bug, and if it isn't shame on you GGG.

So, there's a lot of other threads about the darkshrine DC bug but this isn't that.

This is about darkshrines overwriting each other to begin with. I got a Speed shrine as my first darkshrine and then when I clicked another it was overwritten by a shroud shrine. Woopdedoo.

I really like what you did with the new lab, darkshrines are actually worth taking now, same with puzzles and silver doors, but the shrine effects from darkshrines NEED to stack, otherwise when you get a good shrine early you won't want to take anymore in fear of getting it overwritten. Please fix it so they can stack like normal shrines do.

Edit: I also remembered just now that the Twice Enchanted Prophecy doesn't stack with the Twice Blessed Darkshrine, the prophecy will proc and give you two enchantments and the darkshrine effect will do nothing. Might make a second thread about it later but right now I'm too lazy

To my knowledge, shrines have never stacked. I can see maybe having the timed ones stack because no big deal, but the permanent shrines in lab may be OP.

I also remembered just now that the Twice Enchanted Prophecy doesn't stack with the Twice Blessed Darkshrine, the prophecy will proc and give you two enchantments and the darkshrine effect will do nothing. Might make a second thread about it later but right now I'm too lazy

Also experienced this today. I had massive shrine buff in uber lab, but the buff from the next shrine (brutal) completely removed it. When I did merc lab recently I had multiple stacking permanent buffs.