Hello rtapia,
 
I guess you are seeing an error that is reported CQ: P100007622.   This issue is fixed in the upcoming release of the Update Center.
Workaround at the end of the email.
 
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Explanation:
After opening PLUS+1 Update Center, and you are asked to log in, you end up on a “Congratulation” page with a button that says “Go to PLUS+1 Tools (Desktop)”.
Clicking the button may present an Error pop-up and the Update Center is non-responsive until the clearing the Error by pressing “OK”.   (Sorry about the bad screenshot)

The Error pop-up may not be visible for some users because it is hidden behind the Update Center window that the user can’t move or minimize.
 
It is notable that
- The login process is already done.
- It’s not necessary to click the button on the “Congratulation” page.  Just close it.
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Work Around.
Visible Error:
Click OK and proceed with PLUS+1 Update Center as usual.
 
Non visible Error:
End PLUS+1 Update Center with the help of Windows Task Manager and re-open it.
 
 
If this didn't help, please contact PLUS+1 Helpdesk. https://www.danfoss.com/en/campaigns/dps/plusplus1-support-form/


Have a nice day.

The JS6000 from factory is node id x34
The JS1-H from factory is node id X33

Maybe you are not seeing the node id's correctly, or because they are different from factory it does not work the same,

According to the JS6000 document 'JS6000 Joystick Base Technical Information'
"JS6000 joysticks do not support SAE J1939 dynamic addressing, since the joystick source addresses are hard-coded (static). However, JS6000 joysticks are compliant with SAE J1939 address claiming protocol (in the unlikely event another node on the SAE J1939 bus claims an identical source address to the JS6000, the JS6000 may cease communication on the bus, depending on the message priority of the other node)."

Your JS6000 is 83018593https://powersource.danfoss.com/products/p/83018593
So it's a SAE J1939 type, with Node Id 0x34

JS1-H you'll have to find some more info on that, typically it will start with 11*******
https://powersource.danfoss.com/products/electronic-controls-hmi-and-iot/plus1-joysticks-and-foot-pedals/joysticks?hierarchy.level4=%22Electronic%20controls%2C%20HMI%2C%20and%20IoT%20%3E%20PLUS%2B1%C2%AE%20joysticks%20and%20foot%20pedals%20%3E%20Joysticks%20%3E%20JS1-H%20heavy-duty%20joysticks%22&tab=products

What are the two materials No's?

Please also check level on input pins.
If they are critical, you may have problems.
The thresholds are a little different.
We have had an application and the voltage levels were critical and by using MC050-010 we have had luck - it works.
By using MC050-100 our hardware produced error at the inputs:
We have send impulses to input pin and the voltage level was to high and some pulses were not counted.
So we optimized our hardware and MC050-100 worked well.

If your hardware-design is critical every change in hardware and software can produce errors!
So, check for good design everytime!

To add to that, the datasheet and the information within Guide can vary a bit, I've had that headache before, thankfully realising it early enough in the process, but I believe at least what i encountered has been updated.