With beamer, "Missing { inserted." (regression)

[Zdenek Wagner]

Hi,

I can examine it if I get a MWE. I have meny versions of TeX Live
installed so I can try it in 2020 and 2021.

Zdeněk Wagner
http://ttsm.icpf.cas.cz/team/wagner.shtml

čt 17. 2. 2022 v 17:50 odesílatel Jonathan Fine <jfine2358 at gmail.com> napsal:
>
> Hi Zdenek
>
> Thank you for your prompt response. I don't doubt that this solves the problem for new documents. But the sample Vincent provided works correctly in earlier versions of TeX Live. It may be that his concern is the unexpected failure of backwards compatibility. I certainly have that concern.
>
> I've not yet installed TL 2021 so I can't yet investigate this for myself. Do you have any ideas about what's happened, Zdenek?
>
> with best regards
>
> Jonathan