importmatplotlib.pyplotaspltfrommatplotlib.colorsimportLogNormimportnumpyasnp# create some random data to fill a 2d plotrng=np.random.default_rng(0)img=rng.uniform(1,5, (25,25))# plot itfig,ax=plt.subplots(layout="constrained")plot=ax.pcolormesh(img)cbar=fig.colorbar(plot,ax=ax)vmin=1vmax=5plt.ion()fig.show()plt.pause(0.5)plot.norm=LogNorm(vmin,vmax)plot.autoscale()plt.pause(0.5)

Traceback (most recent call last):  File "/home/mnoethe/.local/conda/envs/cta-dev/lib/python3.9/site-packages/matplotlib/backends/backend_qt.py", line 454, in _draw_idle    self.draw()  File "/home/mnoethe/.local/conda/envs/cta-dev/lib/python3.9/site-packages/matplotlib/backends/backend_agg.py", line 405, in draw    self.figure.draw(self.renderer)  File "/home/mnoethe/.local/conda/envs/cta-dev/lib/python3.9/site-packages/matplotlib/artist.py", line 74, in draw_wrapper    result = draw(artist, renderer, *args, **kwargs)  File "/home/mnoethe/.local/conda/envs/cta-dev/lib/python3.9/site-packages/matplotlib/artist.py", line 51, in draw_wrapper    return draw(artist, renderer)  File "/home/mnoethe/.local/conda/envs/cta-dev/lib/python3.9/site-packages/matplotlib/figure.py", line 3082, in draw    mimage._draw_list_compositing_images(  File "/home/mnoethe/.local/conda/envs/cta-dev/lib/python3.9/site-packages/matplotlib/image.py", line 131, in _draw_list_compositing_images    a.draw(renderer)  File "/home/mnoethe/.local/conda/envs/cta-dev/lib/python3.9/site-packages/matplotlib/artist.py", line 51, in draw_wrapper    return draw(artist, renderer)  File "/home/mnoethe/.local/conda/envs/cta-dev/lib/python3.9/site-packages/matplotlib/axes/_base.py", line 3100, in draw    mimage._draw_list_compositing_images(  File "/home/mnoethe/.local/conda/envs/cta-dev/lib/python3.9/site-packages/matplotlib/image.py", line 131, in _draw_list_compositing_images    a.draw(renderer)  File "/home/mnoethe/.local/conda/envs/cta-dev/lib/python3.9/site-packages/matplotlib/artist.py", line 51, in draw_wrapper    return draw(artist, renderer)  File "/home/mnoethe/.local/conda/envs/cta-dev/lib/python3.9/site-packages/matplotlib/collections.py", line 2148, in draw    self.update_scalarmappable()  File "/home/mnoethe/.local/conda/envs/cta-dev/lib/python3.9/site-packages/matplotlib/collections.py", line 891, in update_scalarmappable    self._mapped_colors = self.to_rgba(self._A, self._alpha)  File "/home/mnoethe/.local/conda/envs/cta-dev/lib/python3.9/site-packages/matplotlib/cm.py", line 511, in to_rgba    x = self.norm(x)  File "/home/mnoethe/.local/conda/envs/cta-dev/lib/python3.9/site-packages/matplotlib/colors.py", line 1694, in __call__    raise ValueError("Invalid vmin or vmax")ValueError: Invalid vmin or vmax