The new palette disappered
I use Musescore both on a desktop and a laptop. I have the most recent version of Musescore on both. At first the new palette showed up. Now on my desktop I can only get the palettes as they were before. The laptop version shows basic, advanced, and MDL. The desktop does not have the MDL option listed. I am not sure what happened on the desktop but I enjoyed the new and improved version of palettes that had just come out.
Comments
The MDL workspace comes as a part of the optional MDL extention.
You can install it using the Resource Manager, which can be found in the Help menu of the program.