sc filter test failures

Hello,

i have this test failures while building libo, i'm getting these while 
building headless so today tried to build libo without --enable-headless 
and got them too:

ods Test
xls Test
xlsx Test
xlsx Test
xlsx Test
subsequent_filters-test.cxx:734:Assertion
Test name: ScFiltersTest::testPasswordOld
assertion failed
- Expression: xDocSh.Is()
- Failed to load password.ods

subsequent_filters-test.cxx:734:Assertion
Test name: ScFiltersTest::testPasswordNew
assertion failed
- Expression: xDocSh.Is()
- Failed to load password.ods

Tried with export VALGRIND=memcheck and it passed so maybe a race condition?

this is configuration:

./autogen.sh --with-max-jobs=6 --with-num-cpus=3 --without-stlport 
--without-help --without-helppack-integration --without-myspell-dicts 
--without-junit --without-java --disable-epm --disable-gconf 
--disable-opengl --disable-gnome-vfs --disable-librsvg --disable-gtk 
--disable-gtk3 --disable-odk --disable-vba --disable-mozilla 
--disable-gstreamer --disable-randr --without-ppds --without-afms 
--disable-cairo-canvas --disable-neon --disable-dbus --disable-systray 
--disable-mathmldtd  --disable-extension-integration 
--disable-postgresql-sdbc --with-system-libs --without-system-libcdr 
--without-system-libvisio --without-system-boost 
--without-system-libcmis --without-system-libwpd 
--without-system-cppunit --without-system-libwps --without-system-libwpg 
--disable-graphite --without-system-sampleicc --without-system-redland 
--without-system-hunspell --without-system-mythes 
--without-system-altlinuxhyph --without-system-lpsolve 
--without-system-libexttextcat --without-system-poppler 
--without-system-mdds --without-system-vigra --without-system-odbc 
--disable-ldap --disable-nsplugin  --without-system-mozilla-headers 
--without-system-sane --disable-unix-qstart-libpng --disable-xmlsec 
--disable-cups --without-system-clucene

Make is the one in /opt/lo/bin

thanks,
riccardo