I had a crash when trying to start a 3D classification from data imported as a stack.
Trying to start it from pre-generated references also crashed.
Here is the bug report.
/home/grigoriefflab/compiled/wxWidgets3_static/include/wx-3.0/wx/arrstr.h(178): assert "nIndex < m_nCount" failed in Item(): wxArrayString: index out of bounds
I have had a similar error message and crash when running a 3D classification (autorefine) where I used random parameters as input parameters and generate from params for initial class references. Then I selected an internally generated volume as reference in the autorefine action.
wxWidgets3_static/include/wx- 3.0/wx/dynarray.h(838): assert "uiIndex < m_nCount" failed in Item().
Trace/BPT trap (core dumped)
This problem was then solved when changing "generate from params" to a specific volume.
I'm looking into this, did you manage to get it to work in the end?
If not, deleting the refinement package, and recreating it may help.
This worked, thanks a lot!