OBS keeps throwing rpmbuild error

Recently, building with OBS (from osc) keeps throwing this error for me:


 + exec rpmbuild -ba --define '_srcdefattr (-,root,root)' --nosignature /home/abuild/rpmbuild/SOURCES/<package>.spec
 rpmbuild: symbol lookup error: /lib64/librpmbuild.so.9: undefined symbol: rpmluaGetLua
 opensuse failed "build <package>.spec" at ....

Does anyone else have this same error? I asked in matrix chat and mailing list to no avail :frowning: