plotting axis scale error in ipmag.ani_depthplot() on example file

[Swanson-Hysell]

What command was run:

ipmag.ani_depthplot(dir_path='data_files/ani_depthplot')

What happened:

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
/var/folders/hb/m9qm0bdd13q_t59j9424w1n80000gn/T/ipykernel_74170/730097389.py in <module>
----> 1 ipmag.ani_depthplot(dir_path='data_files/ani_depthplot');

~/PmagPy/pmagpy/ipmag.py in ani_depthplot(spec_file, samp_file, meas_file, site_file, age_file, sum_file, fmt, dmin, dmax, depth_scale, dir_path, contribution)
   3393             Axs.append(ax6)
   3394             ax6.plot(Bulks, BulkDepths, 'bo')
-> 3395             ax6.axis([bmin - 1, 1.1 * bmax, dmax, dmin])
   3396             ax6.set_xlabel('Bulk Susc. (uSI)')
   3397             ax6.yaxis.set_major_locator(plt.NullLocator())

~/opt/anaconda3/envs/pmagpy_env/lib/python3.9/site-packages/matplotlib/axes/_base.py in axis(self, emit, *args, **kwargs)
   1926                      if ymin is None and ymax is None
   1927                      else False)
-> 1928             self.set_xlim(xmin, xmax, emit=emit, auto=xauto)
   1929             self.set_ylim(ymin, ymax, emit=emit, auto=yauto)
   1930         if kwargs:

~/opt/anaconda3/envs/pmagpy_env/lib/python3.9/site-packages/matplotlib/axes/_base.py in set_xlim(self, left, right, emit, auto, xmin, xmax)
   3520 
   3521         self._process_unit_info([("x", (left, right))], convert=False)
-> 3522         left = self._validate_converted_limits(left, self.convert_xunits)
   3523         right = self._validate_converted_limits(right, self.convert_xunits)
   3524 

~/opt/anaconda3/envs/pmagpy_env/lib/python3.9/site-packages/matplotlib/axes/_base.py in _validate_converted_limits(self, limit, convert)
   3437             if (isinstance(converted_limit, Real)
   3438                     and not np.isfinite(converted_limit)):
-> 3439                 raise ValueError("Axis limits cannot be NaN or Inf")
   3440             return converted_limit
   3441 

ValueError: Axis limits cannot be NaN or Inf

PmagPy version:

4.2.109