As the title says, I am running Create and Amethyst Imbuement on my server. The mechanical harvester cannot harvest the experience bush, but it can harvest the Sweet Berry Bush right next to it.
I am using Fabric 1.20.1

I can provide any other information you might need on request.

Have been dealing with the same issue, and I just noticed something that may be related. When you break a fully grown exp bush it only drops the berry, not the exp bottles you would get by right clicking it. From a quick look at the create code it seems that the harvester breaks the crop and then sets it back to it's CanSurvive state (maybe? not 100% sure).

So, it seems like there's actually 2 issues to be resolved here, firstly that breaking the grown bush doesn't give exp bottles and secondly getting Create to replant the bush in the correct state. I think fixing the first issue should be pretty simple, and that would at least allow the farms to be functional even if they'd be less efficient than they should.

Edit: Aaaaand nevermind, you literally already did that. ignore me...

the latest AI updates add the bottles to the loot table, so that should be resolved. From the investigation I made, there is a part of the Create code that hardcodes to exactly the block Blocks.SWEET_BERRY_BUSH, which obviously won't work for bushes that aren't that.

code permalink: https://github.com/Fabricators-of-Create/Create/blob/9604d98d4657caa03c798eecd07ff8f6dcb45bb7/src/main/java/com/simibubi/create/content/contraptions/actors/harvester/HarvesterMovementBehaviour.java#L193

Thank you very much for the report. I have a couple leads on what I can do on my end, but there may also be some issues with Creates end that are stopping things. I'll take a closer look

Thanks for the quick response time.

Don't mind me, I'm gathering bits of the create source code here.

https://github.com/Fabricators-of-Create/Create/blob/49cc17e3de33c965b1c409130abe436821f7410c/src/main/java/com/simibubi/create/content/contraptions/actors/harvester/HarvesterMovementBehaviour.java#L83

https://github.com/Fabricators-of-Create/Create/blob/49cc17e3de33c965b1c409130abe436821f7410c/src/main/java/com/simibubi/create/content/contraptions/actors/harvester/HarvesterMovementBehaviour.java#L110

https://github.com/Fabricators-of-Create/Create/blob/49cc17e3de33c965b1c409130abe436821f7410c/src/main/java/com/simibubi/create/content/contraptions/actors/harvester/HarvesterMovementBehaviour.java#L136C61-L136C61

https://github.com/Fabricators-of-Create/Create/blob/49cc17e3de33c965b1c409130abe436821f7410c/src/main/java/com/simibubi/create/content/contraptions/actors/harvester/HarvesterMovementBehaviour.java#L193

I have the same issue, however if you want a quick fix, using a deployer from the create mod instead of a harvester works