Missing axis ticks

[Dzeinuda-zz]

Hello crpurcell!

Really cool software, great for simple interferometric observation simulations.
For some reason, the plotter windows is not showing any ticks, only the label.
As an example, on the uv-coverage plot, it simple says u (k\lambda) and v (k\lambda), but not the values.
I know that values are possible, as displayed on some of the test figures on https://crpurcell.github.io/friendlyVRI/.
Is this an options that needs to be toggled somewhere, or is this an issue on my system?

I'm emulating Ubuntu 20.04 LTS on my windows using Oracle VM.
Aside from that all seems to be working well.

Cheers from Denmark
Nicolas