I upgrades libgcrypt to 1.5.0 from 1.4.5.
While deattached sign a testfile, after entering the password I got error message:
gpg2: pkglue.c:41: mpi_from_sexp: Zusicherung »data« nicht erfÌllt.
Abgebrochen
and gpg2 stops.
with 1.4.5. this works.