SunVox 1.9.4c
Windows 10
Steps to reproduce:
1. Open Preferences
2. Activate the Modules section/tab on the left
3. Select 'Default visualizer' several times, e.g. 5 times
4. Close the 'Module visualization parameters' window. Need to repeat as many times as was activated in the previous step.
Note: This affects other windows in other sections as well, e.g. Spectrum analyzer, Window parameters, Fonts, and more.