The problem seems to be solved after uninstalling the SPARTA 1.6.2 plug-ins and then installing an older version like 1.5.1
[...but we don't talk about Csound anymore...?]
E
Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
Issues · csound/csound · GitHub
Discussions of bugs and features can be posted here