[OpenBSD -current] xpdf: core dump

Hello,

I'm using OpenBSD -current. Since some weeks (or months?) I get
a core dump when trying to start "xpdf".

| t20$ head -n 1 /etc/motd
| OpenBSD 7.4-current (GENERIC.MP) #1625: Thu Jan 25 09:16:39 MST 2024

| t20$ uname -a
| OpenBSD t20 7.4 GENERIC.MP#1625 amd64

| t20$ pkg_info xpdf | grep -e 'Inf' -e 'Main'
| Information for inst:xpdf-4.04p1v0
| Maintainer: The OpenBSD ports mailing-list <ports@openbsd.org>

| t20$ xpdf
| xpdf:/usr/X11R6/lib/libX11.so.17.1: /usr/X11R6/lib/libX11.so.18.0 : WARNING: symbol(_XkeyTable) size mismatch, relink your program
| QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-user20'
| Cannot mix incompatible Qt library (5.9.8) with this library (5.15.11)
| Abort trap (core dumped)
| t20$

What can I do, or is it a problem of the package maintainer?

TIA,
Marcel