Hello For reference: Here is the ConTeXt way of entering a long text-Index, which works with lmtx: \starttext \m{F_{\text{long Index}}=m_{\text{long Index}}a} \stoptext Sorry for the noise. (Perhaps a change correlated to the prime discussion...) Christian Am Mi., 25. März 2020 um 09:53 Uhr schrieb Christian Prim < christian.prim@gmx.ch>:

Hello list

Sorry to ask again. What do I miss in following MWE?

\starttext \m{F_{\rm longIndex}=m_{\rm longIndex}a} \stoptext

The index longIndex overlaps the following characters "=" and "a" when processed with lmtx. No problems with mkiv.

Thanks for your help Christian

Am Sa., 21. März 2020 um 17:27 Uhr schrieb Christian Prim < christian.prim@gmx.ch>:

...

Hello

Following MWE produces strange output in latest LMTX. mkiv (also latest) output is ok.

\usetypescript[palatino] \setupbodyfont[palatino,11pt] \starttext \m{F_{\rm longIndex}=m_{\rm longIndex}a} \stoptext

The spacing in the index is wrong.

What am I missing?

Thanks in advance Christian