Comment 7 for bug 1383404

Oh, hm. The OP mentions a 43-minute track. I think this is a bug in the waveform stride calculation. It cuts off with this hard-coded look-up-table that doesn't go above 4096*4096.

https://github.com/mixxxdj/mixxx/blob/master/src/waveform/waveform.cpp#L210

And then creates a buffer of size 4096*4096, despite setting the waveforms size to the proper size. So we think the buffer is larger than it is.
https://github.com/mixxxdj/mixxx/blob/master/src/waveform/waveform.cpp#L206

This has been around since Waveform 2.0 was added, but the new build server builds for Windows in DEBUG mode which includes bounds checking on std::vector accesses, so I think that's why this assert fires.