The newly released package LibreOffice 6.3.0.4 performs 2 lookups of the missing URL, which is a performance improvement, but not a definite fix. See strace bellow: T430# strace -t -f /usr/bin/soffice 2>&1 | grep ftp [pid 14269] 14:13:44 sendmsg(16, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="l\1\0\1\36\0\0\0\5\0\0\0w\0\0\0\1\1o\0\23\0\0\0/modules"..., iov_len=136}, {iov_base="\31\0\0\0ftp://ftp.libreoffice.org\0", iov_len=30}], msg_iovlen=2, msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 166 [pid 14269] 14:13:50 sendmsg(16, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="l\1\0\1\36\0\0\0\n\0\0\0w\0\0\0\1\1o\0\23\0\0\0/modules"..., iov_len=136}, {iov_base="\31\0\0\0ftp://ftp.libreoffice.org\0", iov_len=30}], msg_iovlen=2, msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 166 T430# The same package from LibreOffice performs exactly the same, so it seems openSuse's packages are inline with upstream...