Remote desktop freezing some application

Question

I do have many computers which are all clones of each other and only some of them have the following problem.

We open remote desktop sessions to these computers we open some application. The simple feature they have is they all have documents open and they report activity somehow. Mostly through their autosave features we can see they are alive and well.

We open the remote session to start the application then we just disconnect so we keep the session alive. The problem is some process eventually will completely stop to get CPU time (this is a guess) and stop auto saving or running other features we can track. If we just reopen the remote session all the application that stopped reporting suddenly start to report again.

Is there a sleep option specific to remote desktop that affect only application. I say only applications because i do have TCP-IP server app running on those computers which never stop reporting and those are also GUI application like MS-Word is.

I have major brand application such as MS-Word, Solidworks, AutoCAD that suddenly stopped getting CPU time from the scheduler. Since all computer are clones if the problem would be the software i would have the same issue. Here i am talking of real full clones. All parts inside are the same, the windows is also a clone image with computer name changed. They all use the same domain account login. Everything is the same.