I wonder how that can be. That version had only the default route dropped from CLAT when VPN is up. Interesting. But it was quite obvious from the logs you’ve sent (thank you) that there was something else needed, and hopefully 1.32+git194.3 has that addressed.
Checking the output with tcpdump -i clat and tcpdump -i vpn0 (or which vpn interface is used, 0…9) might give some hint where data is going. tcpdump is available in the tools repo.