[DNSB]

Originally Posted by dan2the6th

Every time I come up with an issue like this, I'm told "update your video drivers". Sorry, but that's NOT the issue.

Thanks anyhow for the advice.

Hmmm.... Open GL context errors. You know that does sound like video driver errors.
A quick search on OpenGL context errors, I came up with this response for that error:

According to the information provided by the error message, the issue you are struggling with came up because your system lacks the required graphics drivers.

Looking at AutoDesk's site:

Causes:
Outdated graphics card drivers.
Solution:
To workaround this issue, make sure to update the graphics card drivers. Refer to the graphics card manufacturer's website:

Once everything is up to date, run Autodesk products again.

If the issue persists try the following solution:
Switch graphic libraries used by the Single Sign On Component

The Single Sign On Component by default uses Qt. Qt checks the OpenGL drivers 1.3 or later and loads/uses the native OpenGL driver. If OpenGL driver is lower than 1.3, Qt loads/uses the ANGLE library instead. Try entering the following system variables:

QT_OPENGL=angle
QT_ANGLE_PLATFORM=warp

Note: Other possible entered values for QT_ANGLE_PLATFORM are d3d9 and d3d11. Here is an example on how to set up a system variable on Windows.

Even if your video drivers are updated to the latest available, that does not mean that they have updated components such as OpenGL to match the latest requirements.