Issue description:
I've been trying to automate the elite tier crafting recipes through Refined Storage, but I've run into an issue of being unable to import the specific items into the Metallurgic Infuser/Infusing Factory. The core item (such as obsidian dust) is imported through the Refined Storage Crafter, however the infusing material (like enriched diamond) doesn't import into the block.
Steps to reproduce:
-Place down resource specific infuser (basic or factory, doesn't make a difference)
-Connect crafter to infuser (all sides reproduce the same issue)
-place correct recipe on pattern into crafter
-queue up craft
-Crafting Monitor will read "Machine doesn't accept item."

Version (make sure you are on the latest version before reporting): 1.16.4-10.0.18.445

Forge: 35.1.13
Mekanism: Mekanism-1.16.4-10.0.18.445
Other relevant version: Direwolf20 1.16 Modpack (version 1.3.1) which uses Refined Storage-1.16.4-1.9.11

I've tried importing items into a chest connected to the infuser, but I still run into the same issue. I've tried placing the Crafter on every side of the infuser. The only way I can see to get around this is to manually supply each infuser with the required material (redstone/coal/diamond), but then what's the point of trying to automate it? I'm sure there has to be something I'm doing wrong but I'm at a loss on figuring out how to fix this. Let me know if this should be reported on Refined Storage's GitHub instead of here.

The infuser needs to have the item's tab set to extra on the side you want to be inserting it from.

Thanks for the quick help! I've set the item tab to extra on the back side where the crafter is importing the necessary items, however the crafting monitor is still displaying the same message. I exchanged the factory with the basic infuser to see if that made a difference and to make it a little more simple for troubleshooting. Attached will be a handful of pictures that might help to pinpoint what is happening.

-This is how the Mekanism machines are set up, with different infusers for each type.

-This is the item tab config for the redstone infuser

-I adjusted the recipe to just include basic redstone in lieu of refined redstone.

-Queuing up an Infused Alloy

-Crafting Monitor displays the error message.

My best guess is it is trying to insert both the iron and the redstone on the same side except they need to be inserted on different sides, the redstone (more efficient if you enrich it into enriched redstone) on a side set to extra, and the iron on a side set to input.

I'm guessing that's the case, I'll just need to figure out how to do that! Thanks for the help, I really appreciate it.

The easiest way to set this up is to have a crafter import the material to be infused, and have an exporter with a regulator upgrade to input the enriched infuse material. For example, if you want to make infused alloys:

The pattern for the recipe should be: 1 Iron Ingot -> 1 Infused Alloy

Put this pattern into the crafter connected to the input of the Infuser. On another side of the infuser, attach an exporter. Set that side of the infuser to "Extra". Put a regulator upgrade in the exporter, along with an enriched redstone. Set the value of the redstone to 1, so that there will always be 1 enriched redstone in the exporter.

The downside to this is that the infuser can only run 1 type of operation, so you will need multiple infusers to run different operations.

Siddhant, you're a life saver! Or at the very least, a great person for saving me the time of messing around with refined pipes' extractors. Thanks a bunch!

Always glad to help! I've been in the same position you have, and it took far too long for me to figure it out than I'd like to admit lol.