Saving topomap animation doesn't include plot titles (time points)

MWE:

import numpy as np
from mne.datasets import sample
from mne import read_evokeds

path = sample.data_path()
fname = path + '/MEG/sample/sample_audvis-ave.fif'
condition = 'Left Auditory'
evoked = read_evokeds(fname, condition=condition, baseline=(None, 0))

times = np.linspace(start=evoked.times[0], stop=evoked.times[-1], num=25,
                    endpoint=True)

fig, anim = evoked.animate_topomap(times=times,
                                   ch_type='eeg',
                                   frame_rate=2,
                                   time_unit='s',
                                   butterfly=False,
                                   blit=False,
                                   show=False)

anim.save('/tmp/foo.gif')

Output

MovieWriter ffmpeg unavailable; using Pillow instead.
Initializing animation...

Whereas the respective Matplotlib figures contain the titles; they simply seem to get lost during saving:
https://mne.tools/dev/auto_examples/visualization/plot_evoked_topomap.html#animating-the-topomap

Start with evoked.animate_topomap and the anim.save('/tmp/foo.gif') reproduction, then compare the saved animation with the Matplotlib figures from the plot_evoked_topomap example. Trace how titles for the time points are created and rendered during animation saving. Done means saved GIF frames retain the expected plot titles when using the provided example.