When I pick up the (I think it’s club ) block in the big black drawer. It doesn’t disappear in the big room.

Hi Boudreaolivier, thanks for reporting this! I believe you're referring to the Spades block in the Suits room. This is actually something I left in, due to the limitations of the engine (the game won't consistently check whether an item is picked up by a player). I will include it in the bug tracker nonetheless. Cheers!

Given how high quality your rooms are, I wouldn't be surprised if none of this was news to you, but just in case you didn't know, here it is.

I think you could solve the issue with the spades emblem by getting it to be pre-placed in a slot, rather than rely on triggers. If you start the item in such a place that it is inside the slot on level start, then you can use the slot logic (item set to valid key) to detect when the object is picked up/removed from the slot (it is now locked). It should be reliable to detect this, and then whatever you want to have happen can happen. I'm not sure it's worth fixing, because it was just a cosmetic issue, but it should work!

Note: Only certain objects are valid items to be pre-placed / dropped / thrown into slots (as opposed to only directly placed by players), but there are quite a few of them.

Example that doesn't work: Shapes > Cube
Example that does work: Blue Stone Gem

If your object isn't one that works, you could always parent it to an object that does work for pre-placing into slots, as a workaround.

Hi Khadgar, really appreciate the thoughtful suggestion. Yea I only learned of this trick really recently (after devilish came out), was using it in an early build of Obelisk before, but then all of a sudden I noticed it was working inconsistently, I had no idea why and it spooked me. Didn't know about that parenting trick though and I feel sooner or later I'll have to give this a shot and figure out a way to do it guaranteed. Will look into it and thank you!!