The error is related to the problem. If you have autorun enabled, sometimes by default the minimum font size is equal to the size exceeding your current font size. You may have adjusted the font to a smaller size, and as a result, the minimum font size is now larger than the actual font.
To correct the behavior, in the Autoshrink section, adjust the minimum font size to less than the current font size.
Alternatively, if you do not care about automatically compressing your text to fit the size of the label, you can set "Autoshrink" to "Fixed Font Size", which will also suppress the warning.
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