I'm back!
Fixed all of the issues that I got from the comments and a couple of more after looking at the script and realising what a dummy I was. Fingers crossed that it works now!
Thanks Bumbleb_ for the info!

and blueprint make different item.. <Result Amount="1" TypeId="Component" SubtypeId="HardenedSteelPlate" />

Stainless Steel Plate has this error .... <Item Amount="15" TypeId="Ingot" SubtypeId= "Nickle" />

Sorry, that took a while! Finally fixed my assemblers so now they should work as intended.

Might to be updated for the survival update. Tiered assemblers act like basic assemblers and can only make the basic components.

Aww, thank you! Now I understand the situation, thanks for clearing it up for me! This problem is caused by the ice which is for creating those plates (for realism). I guess those scripts don't take into consideration that ice could be used in crafting. It's behaving like that because in the vanilla game ice isn't used in crafting and is only useful for generating o2 and h2. This is an easily fixable problem but it requires me to remove ice from my materials.

Ok it looks like "Isy's Inventory Manager" doesn't steal from o2 generator but does craft plates when there is some ice available in containers. Which makes sence but not obvious. Thanks for clearing that for me and early responce. Love your tiered modules BTW !

@Chaos Legion My components aren't used for crafting other materials so it should work just fine. Also, they use vanilla ores/ingots that are present in the default unmodified game. I tested this theory with "Isy's Inventory Manager" script and didn't have any issues. Can you give me a better explanation or maybe even a video so that I could understand this situation better?

I'll try to fix that as soon as I have free time.

inventory management scripts refuse to transfer new plates into assemblers.

New update live! Fixed some bugs. (Still testing assemblers speed so hopefully I can do a quick update with modified speeds!)

Alright thanks, I'll take a look at it

It's basically <RefineSpeed> but for assemblers

I don't know if it has been changed in a recent patch, but previously you could add an <AssemblySpeed> modifier to the CubeBlocks.sbc and have that control the speed, for example I had a huge assembler with the tag:
<AssemblySpeed>40</AssemblySpeed>
added and it made it 40 times faster. I wouldn't recommend going much further than that as the game doesn't like it.

This is the entire CubeBlocks.sbc of the upgraded assembler:
https://pastebin.com/raw/SfWuCK3W

Released a quick fix because new components (hardened steel and stainless steel) caused the game to crash.

Well they are regular assemblers with boosted inventory space, integrity and higher power consumptions. Right now I can't add more speed to them because that is controlled by the world assembler speed (realistic, 3x, 10x). If you want to take full advantage of those assembler then I recommend downloading my Tiered Modules mod https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1444473665

Can you explain what the differences is between the tiers? Seems like they all have the same specs except for integrity and inventory space.