superscipt in large fonts

[Csikos Bela]

Hello:

This occurs in lyx 2.3.6.1.

When I add superscript to non-default sized fonts, for example to "larger" fonts, the 
superscript text is not scaled correctly, its size is the same as the size of the larger font.

How can I add correctly scaled superscript text to non default font sizes?

Thanks,

bcsikos