UPD #14705 fixes this issue

Unfortunately I can't provide a full MWE at this moment (I'll try to find time and update with code), but I thought reporting will still be good anyway.

I want to use cyrillic text ticks in order to debug a speech recognition system. I plot either the top-1 character prediction or top-2. I use mutli-line ticks in order to plot two character predictions. In top-2 mode the labels get cut off, including the label that's on the first line.

When top-1 prediction is plotted:

When top-2 predictions are plotted (note the cut-off labels).

The labels are not affected by any randomness, the only difference is using ticks of 1 character or 3 characters (counting the newline character). Essentially I'd use an appropriate rotation mode if it existed.

Potentially related issue with a MWE: https://stackoverflow.com/questions/53942480/how-can-i-change-the-text-direction-of-tick-labels-in-matplotlib