[NTG-context] Problem with lilypond module

Hi Mojca, Christopher, Hraban, Wolfgang, since a couple of days the lilypond module doesn't work anymore. Testfile: \usemodule[lilypond] \starttext There are some notes \lower 8.2pt\hbox{\lilypond[fragment=true]{\relative c' {c d e fis}}} embedded in this line. \stoptext Context creates a file "&1" with 0 Byte and a file "lilypond-1" in the current directory. In the log i find: !LilyPond ERROR : File 'lily1-lilypond-1.tmp' was not written! Processing file "lilypond-1" directly with lilypond works. Greetings Lutz