It turns out that loading PGML.pl changes the Context, so you don't get the usual default context. (It is actually because PGML.pl loads contextTypeset.pl, and it is the one that messes up the default Context).
So for now you really must set a Context explicitly when you are using PGML.pl.
Davide
WeBWorK Main Forum
Malformed student formula answers lead to syntax error messages. How avoid?
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