I tryed to restart the programm, restart my pc, to reinstall the programm but nothing woked.
Its on the non paid version right now but I want to buy the paid version again to make my YouTube Videos but I fear that the problem will also be on the paid version and that I kinda waste my Money if thats the case because I wont get the sound good.
It happens on every Key I press. If you want I also can send you a Video of it.
The MIDI Synth is controlled in the MIDI Settings window.
You can find the MIDI Settings button in Media Settings, which at the top-middle of the main screen - it is the window with the MIDI, Audio, and Video filenames in it. Click MIDI Settings.
In MIDI Settings, what does the Sound button read? The default is "grand piano.sf2". If it has been changed from the default, click that button, and change it back to "grand piano.sf2".