5.13.9 is now in koji you might give that a shot.
5.13.5 changelog shows
commit c3eb534eae09de6cdd3e0ff63897b20e1b079cdb
vmxnet3: fix cksum offload issues for tunnels with non-default udp ports
5.13.6 changelog shows several vmware related commits
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.6
But I don't know if any are related to the problem. And I don't see
followup patches in 5.13.7 through 5.13.9.
I suggest filing a bug against the kernel and fill out the template
provided. I also suggest testing 5.13.5 to see if that's the first
version that broke things or if it was in fact first broken with
5.13.6 (and still broken in 5.13.9). But with such a new kernel, I
also suggest making sure vmware is up to date.
--
Chris Murphy