Broken document

[Daniel]

On 15/03/2023 10:37, Axel Dessecker via lyx-users wrote:
> Am Mittwoch, 15. März 2023, 09:57:13 CET schrieb Daniel:
>> Hi!
>>
>> I somehow managed to break one of my documents and cannot see where the
>> problem is. I have attached a minimal example that I produced after a
>> longer error hunt (because LyX did not give me helpful error feedback on
>> this).
>>
>> Does someone have an idea how the error occurred or how I might be able
>> to fix it?
>>
>> The LaTeX error message does not tell me much and LyX did not even point
>> me to the position in the document where the error occurred.
>>
>> --- LaTeX Error ---
>>
>>       lsttxt    = \RSlsttxt}
>>
>> I've run across a `}' that doesn't seem to match anything.
>> For example, `\def\a#1{...}' and `\a}' would produce
>> this error. If you simply proceed now, the `\par' that
>> I've just inserted will cause me to report a runaway
>> argument that might be the root of the problem. But if
>> your `}' was spurious, just type `2' and it will go away.
>>
>> --- End ---
>>
>> Best,
>> Daniel
> 
> Daniel,
> 
> No problem here. This is LyX 2.3.7, openSUSE Leap 15.4. Do you have a recent
> system version?
> 
> Axel

Strange. This is on Window 10 with both LyX 2.3.7 and 2.4beta2 give me 
the problem.

tex --version
TeX 3.141592653 (TeX Live 2022)

Daniel