Instruments and Samples dragging does not work.

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Evertyime I try dragging and dropping an instrument plugin and adding it to either the song editor or the beat+bassline editor, all I see is a little prohibition sign near the instrument icon for the whole time, and dropping it anywhere on the song editor does not do anything.
Is there a solution to this or an alternate way to add instruments to the song editor or the beat+bassline editor?
I'm using the OpenBox window manager on Arch linux.
Thank you for all the potential answers.
Lillo_e_Greg wrote:
Tue Jan 08, 2019 7:28 pm
I'm using the OpenBox window manager on Arch linux..
This is because of a bug in qt. The final fix will be in qt 5.12.1 which I expect in a couple of weeks. You can try the AppImage or downgrading your qt version.
zonkmachine wrote:
Wed Jan 09, 2019 6:10 am
This is because of a bug in qt. The final fix will be in qt 5.12.1 which I expect in a couple of weeks. You can try the AppImage or downgrading your qt version.
Thank you!
The appimage versione seems to be working fine.
Fixed in Arch Linux in qt5-base 5.12.0-2