waveform renderer DEBUG_ASSERT in main

[ronso0]

Bug Description

got this with a track loaded in one deck when I

• enabled scrolling waveforms in the preferences (VSync test was auto-selected even though it was RGB earlier?)
• switched to Stacked type
• enabled High Details

The assert happens in Filtered renderer even tough I had Stacked already enabled.

DEBUG ASSERT: "reserved == vertexUpdater[0].index() + vertexUpdater[1].index() + vertexUpdater[2].index()" in function bool allshader_gl::WaveformRendererFiltered::preprocessInner() at ./src/waveform/renderers/allshader/waveformrendererfiltered.cpp:191

And these warnings

warning [Main] WaveformRendererTextured::createFrameBuffer - frame buffer not valid
warning [Main] QFont::setPointSizeF: Point size <= 0 (-481740032.000000), must be greater than 0
warning [Main] QPainter::begin: Paint device returned engine == 0, type: 3
warning [Main] QPen::setWidth: Setting a pen width that is out of range
warning [Main] QPainter::setRenderHint: Painter must be active to set rendering hints
warning [Main] QPainter::setBrush: Painter not active
warning [Main] QPainter::setPen: Painter not active
warning [Main] QPainter::setFont: Painter not active
warning [Main] QPainter::drawPath: Painter not active
warning [Main] QPainter::begin: Paint device returned engine == 0, type: 3
warning [Main] QPainter::save: Painter not active
warning [Main] QPainter::setClipRect: Painter not active
warning [Main] QPainter::setWorldTransform: Painter not active
warning [Main] QPainter::opacity: Painter not active
warning [Main] QPainter::worldTransform: Painter not active
warning [Main] QPainter::setWorldTransform: Painter not active
warning [Main] QPainter::setOpacity: Painter not active
warning [Main] QPainter::restore: Unbalanced save/restore
warning [Main] QPainter::begin: Paint device returned engine == 0, type: 3
warning [Main] QPainter::setRenderHint: Painter must be active to set rendering hints
warning [Main] QPainter::setFont: Painter not active
warning [Main] QPainter::setPen: Painter not active
warning [Main] QPainter::setBrush: Painter not active
warning [Main] QPainter::drawPath: Painter not active

Version

main / 2.6-alpha b1967ea

OS

No response

[acolombier]

Is this reproducible 100% of the time?

[ronso0]

I think so. I managed to reproduce it 2 times with these steps.

[ronso0]

Can try again if that hepls.