[LMMS-devel] QPen::setWidth error in Tripple Oscillator

[Nikos C. <re...@ar...>]

Most of the time, opening a Tripple Oscillator instrument will result in 
a graphical glitch where some square areas of the widget are black (see 
screenshot).  When that happens, this warning appears on stderr:

QPen::setWidth: Setting a pen width with a negative value is not defined

Screenshot is attached.