Some parts not searchable

[devblazer]

I have noticed that some parts do not show up in any categories or when using the search bar.
For instance, the MKS mod's: 'material processing unit'

However, if I navigate to Manufacturer->UmbralSpaceIndustries, only then I can see it and nowhere else.

I have tried multiple different searches with the searchbar, to no effect.

Is this a known issue with kps?  or with the MKS mod?

Am I going insane here?

My kerbals version is 1.3.1

Edited August 20, 2018 by devblazer

[4x4cheesecake]

Well, if you take a look in the part config files, you can find (at least) two different manufacturer entries for MKS parts:

•  Umbra Space Industries (i.e. for the Landing Modular Wheel)
•  USI - Manufactoring Division (i.e. Material Processing Unit (1.25m))

But the bigger issue is the missing category for the Material Processing Unit (to be more precise: the category is set to 'none'). I don't know if that is done on pupose but this is the reason why you cannot find the part in your regular part list but by some filters in the advanced mode. Squad uses the same trick in the stock game to hide outdated parts like the MK1-2 Command Module in KSP 1.4.+. By hiding these parts instead of removing them, old crafts which still uses these parts keep compatible with newer versions of KSP.
Probably, RoverDude hides the parts on purpose, you might get an answer if you ask in the mod thread