Unchecking Drumset in Mixer loses drumset with no warning
OS: Windows 7 Home Premium; Product ID: 00359-OEM-8992687-00010.
HW: AMD-A4-3300M APU with Radeon HD Graphics 1.90 GHz.
Memory: 6.00 GB
System Type: 64 bit
Model: HP Pavilion G7
MuseScore Version: 2.0.2; Revision: F51dc11.
Trying to enter a note onto the cymbal stave results in no changes to the score.
Open the test file: Cymbal_Test_20160501__01_44U.mscz
Select a rest on the cymbal stave. Select the 'N' icon in the note entry tool bar to put MuseScore into note-entry mode. A blue note will appear, attached to the mouse pointer. Position it over the cymbal stave and left click to enter the note. The expected response is that the note will become attached to the stave, but the actual response is that nothing happens.
Comments: The same problem is noticed with trying to add notes to the Wood Blocks stave (which is currently invisible, per settings in the Edit Instruments list). I don't know how to reproduce the occurrance of this bug (if it is in fact a bug, and not something I'm doing wrong). Adding a note to the cymbal line worked correctly in previous versions of the score, but failed to work properly, at some unknown point in time.