Error showing plot with reticulate

I'm using the reticulate R package to create an R Markdown file with Python code cells. Here's a minimal test.Rmd file that shows how to produce a Matplotlib figure:

---
title: Test
output: html_document
---

```{python}
import matplotlib.pyplot as plt

plt.plot([0, 1, 2], "x")
```

However, I get an error when I try to plot sensor locations:

---
title: Test
output: html_document
---

```{python}
import mne

mne.channels.make_standard_montage("easycap-M1").plot()
```

Error in py_call_impl(callable, dots$args, dots$keywords) : 
  IndexError: list index out of range

Detailed traceback:
  File "<string>", line 1, in <module>
  File "/usr/local/lib/python3.9/site-packages/mne/channels/montage.py", line 201, in plot
    return plot_montage(self, scale_factor=scale_factor,
  File "<decorator-gen-166>", line 24, in plot_montage
  File "/usr/local/lib/python3.9/site-packages/mne/viz/montage.py", line 74, in plot_montage
    collection = fig.axes[0].collections[0]
Calls: <Anonymous> ... py_capture_output -> force -> <Anonymous> -> py_call_impl
Execution halted

It seems like this is related to show=True (the default), because the following modification works just fine and produces the figure:

---
title: Test
output: html_document
---

```{python}
import mne
import matplotlib.pyplot as plt

fig = mne.channels.make_standard_montage("easycap-M1").plot(show=False)
plt.show(fig)
```

Any ideas if there could be something wrong with the way we are forcing figures to show? Or is this rather a problem related to reticulate? I have no idea what fig.axes[0].collections[0] is actually doing, why it is necessary here, and why it fails when used with reticulate (but works otherwise).

Reproduce the supplied test.Rmd examples, then inspect mne/channels/montage.py and mne/viz/montage.py around plot_montage and the fig.axes[0].collections[0] access. Compare the show=True and show=False paths under reticulate; done means the easycap-M1 montage renders from the direct plot call without the workaround.