Glitch (bug?) in 2.3.6.1

[Paul A. Rubin]

On 12/9/21 3:27 PM, Rich Shepard via lyx-users wrote:
> I've encountered unusual behavior when compiling the document using
> pdflatex. When I've used an ERT within a float figure's caption lyx
> highlights the string containing that ERT and pops up an error box which
> tells me only that there's an error.
>
> Closing that error box and repeating the command, ctrl-x/ctrl-h, presents
> the message that the pdf files's been created in the status bar.
>
> In one figure caption I had '\mu' in an ERT box, in the other caption 
> it is
> '\textdegree' in the box.
>
> Since I don't subscribe to the dev's mail list I'm posting this here. It
> might be a bug, or the error message box and highlighting might be only a
> distracting glitch.
>
> Rich
I can't reproduce this (with 2.3.6.1). Putting \textdegree in ERT in the 
float caption works fine. Putting \mu in ERT predictably does not, but 
putting it in a math environment works, as does putting $\mu$ in ERT.

So methinks an MWE is needed.

Paul