MtoA 3.3.0 fails to load in Maya 2017 on Linux

[JoeAlter-Inc]

When I try to load MtoA 3.3.0 in Maya 2017, running on CentOS 7.6, I get the following error for each extension that MtoA tries to load:

#   File "/opt/solidangle/mtoa/2017/scripts/mtoa/ui/qt/treeView.py", line 308, in BaseDelegate
#     dpiScale(QtCore.QPointF(12.0, -2.5)),
#   File "/opt/solidangle/mtoa/2017/scripts/mtoa/ui/qt/utils.py", line 24, in dpiScale
#     return _DPI_SCALE * value
# NotImplementedError: reverse operator not implemented.

MtoA 3.3.0 loads fine in Maya 2018 on the same system.

EDIT: The Maya 2017 cut id is 201606150345-997974. I don't get the same problem on MacOS, even though the Maya 2017 has the same cut id.

[Stephen.Blair]

Is that Maya 2017 Upgrade 5 ? I had that error until I installed Upgrade 5

[ashley.handscomb.retallack]

This is due to the version of PySide2 in older versions of 2017, updating 2017 should fix the issue