Sys-firewall problems when upgrading default-dvm to fedora-42

I’m having a weird port forwarding issue whenever I update my networking qubes (sys-net and sys-firewall via default-dvm) to fedora-42. After allowing communications between two qubes via nftables on sys-firewall, it seems a connection only hits a small percentage of the time, the rest of the time I get a timeout. Has anybody else experienced a similar issue? I’ve done extensive testing to rule out anything else. Everything works fine when I revert to fedora-41.