For me at least. Going back to 1.35 makes bind work again.
Error looks like Apr 16 15:48:51 proxy named[944]: netmgr.c:1000: REQUIRE(worker->recvbuf_inuse) failed, back trace Apr 16 15:48:51 proxy named[944]: #0 0x61943fe4dc20 in ?? Apr 16 15:48:51 proxy named[944]: #1 0x70cde3c7cf4c in ?? Apr 16 15:48:51 proxy named[944]: #2 0x70cde3c95832 in ?? Apr 16 15:48:51 proxy named[944]: #3 0x70cde3c9a1d3 in ?? Apr 16 15:48:51 proxy named[944]: #4 0x70cde33bbcba in ?? Apr 16 15:48:51 proxy systemd[1]: named.service: Main process exited, code=killed, status=6/ABRT -- Subject: Unit process exited -- Defined-By: systemd -- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- An ExecStart= process belonging to unit named.service has exited. -- -- The process' exit code is 'killed' and its exit status is 6. Apr 16 15:48:51 proxy named[944]: #5 0x70cde33bc293 in ?? Apr 16 15:48:51 proxy named[944]: #6 0x70cde33bea98 in ?? Apr 16 15:48:51 proxy named[944]: #7 0x70cde33ad2dd in ?? Apr 16 15:48:51 proxy named[944]: #8 0x70cde3c978e9 in ?? Apr 16 15:48:51 proxy named[944]: #9 0x70cde359c057 in ?? Apr 16 15:48:51 proxy named[944]: #10 0x70cde34ca62f in ?? Apr 16 15:48:51 proxy named[944]: exiting (due to assertion failure) Apr 16 15:48:51 proxy systemd[1]: named.service: Failed with result 'signal'.