It's true. In the version that comes with TeXlive 2021 (2021.03.05) this numbering works fine, but not with the 2022.05.11.
L. Montgomery

El jue, 19 may 2022 a las 3:34, śrīrāma via ntg-context (<ntg-context@ntg.nl>) escribió:
Hi,

[I am on version 2022.05.11 11:36]

I think either a bug might have crept into one of the recent uploads or there
is some change in behaviour – numbering of statements inside mathalignment
blocks is not working: only one statement is numbered even if multiple are
requested.

The following example does not produce the expected result (sample attached):
both the equations should be numbered when only the first one is –

  \starttext

  \placeformula
  \startformula
    \startmathalignment
      \NC a \NC = b \NR[eq:one]
      \NC c \NC = d \NR[eq:two]
    \stopmathalignment
  \stopformula

  \stoptext

Also the [+] options and the second optional argument of \NR does not work as
expected. Has its behaviour changed?

I ran into this when I compiled a large maths-heavy document and while proof-
reading noticed numerous missing references to statements inside
mathalignment. Please advise me on how I might fix/workaround this.

Thank you,
  Sreeram___________________________________________________________________________________
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