I am not with Laminar Research; just a flight simmer from downunder.
I don't have or support steam. Normally I would advise you to take your problem to a steam forum. This site is for the official Laminar Research version of X-Plane.
Steam is a 3rd party hybrid taking a commercial advantage of the development work carried out by Laminar. It is a totally different package that will not mix with the official version. Laminar does not market steam. Steam will only update when official releases are made whereas with the Laminar version you can get the up[dates, including beta versions as soon as they are available. Steam installs differently to the Laminar version and would be more difficult to fully remove.
Now your controller problem. This following advice may not totally fix your problem but will provide a partial solution.
Purchase or download a good reliable software package that will remove files from your PC. Then apply that software so that it completely removes any/all files associate with your Logitech (Saitek) software. When completed find your Logitech discs and dump them in the bin or dig a hole and bury them. Logitech software does not work with X-Plane.
Now that you have completed that process don't try and install the controls through windows either.
The objective now is to install the X52 controls. It can only be done through X-Plane. Have a look at the following link found at https://www.youtube.com/watch?v=hU_TuALAlJk from Michael Brown. Michael owns a business in the USA that builds PCs predominantly for X-Plane. Laminar Research recommends this business as the preferred PC supplier in the USA.
Review the video several times to understand the process and disregard the unit that is being demonstrated. The configuration process will take some time provided you are thorough. When complete the latest versions of X-Plane allows you to give the newly configured controls a name. Do so.
The important issue to remember is not to assign more than one instruction to a button or switch or lever or vice- versa ie don't have multiple assignments
Shut down X-Plane and remove the X52 controls. Repeat the process for the X56 controls.
The configuration process also applies to other hardware brands as well including yokes and pedals.
What you will have is the ability to select controls for your aircraft of choice without having to reconfigure the controls as was the case with XP10.
As indicated earlier this process may not solve your problem but will get your controls configured so that they will be usable.