Hi all,

Thank you for your recent assistance with calligraphic math fonts.

I am trying to use a matrix example from math-ali.mkxl, but I am running into an issue. 
When I try to use the location parameter, I receive the error 
A <box> was supposed to be here. 

I have also tried both location=bottom and location=top, but both give the same error.

Do you have any ideas on how I can get the matrix in the desired locations?
Thank you in advance for your help.

Best regards,
Jacob

\starttext

\startformula
\startmatrix[left={\left(},right={\right)}]
  \NC A \NC B \NR \NC C \NC D \NR
\stopmatrix
=
\startmatrix[left={\left(},right={\right)},location=low]
  \NC A \NC B \NR \NC C \NC D \NR
\stopmatrix
=
\startmatrix[left={\left(},right={\right)},location=high]
  \NC A \NC B \NR \NC C \NC D \NR
\stopmatrix
\stopformula

\stoptext