Blank EPS figures if plot contains 'd'

[sussexwearlab]

Bug report

Bug summary

Matplotlib >= 3.4.0 generate blank EPS if the plot contains the character 'd' in any label, tick or title.

Code for reproduction

import matplotlib.pyplot as plt
import numpy as np

x = np.arange(0, 100)
y = np.random.randint(0, 100, size=(x.shape))
fig = plt.figure()
subplt = fig.add_subplot(111)
subplt.plot(x, y)
subplt.set_xlabel("data")
fig.savefig("test.eps", bbox_inches='tight', format='eps', dpi=1000)
plt.show()

Actual outcome

Blank figure.

Expected outcome

Actual figure saved as shown.

Matplotlib version

• Operating system: Archlinux
• Matplotlib version (import matplotlib; print(matplotlib.__version__)): >=3.4.0
• Matplotlib backend (print(matplotlib.get_backend())): Qt5Agg (But I also tried to delete matplotlibrc in order to revert to the default backend, which I guess is TkAgg)
• Python version: 3.9
• Jupyter version (if applicable): -
• Other libraries:

Matplotlib was installed through the package manager of my distribution. Downgrading to Matplotlib 3.3.4 resolves the issue for the same figures.