"Load from score" issue in Synthesizer

2.0.3 / Win 7

1. Load a score with synthesizer settings previously saved to it. Press "Load from score" (in the synthesizer) to transfer these settings to the synthesizer.
2. Now close the score and open another score with synthesizer settings saved to it.

Expected result: The "Load from score" button should be active.
Actual result: The "Load from score" button" is greyed out. You have to press "Load default" to activate it.