Finally, Self-hosted LiveSync 0.23.21 has been released!
So many changes and improvements there. Please read the release note! Thank you for your long patience!
https://github.com/vrtmrz/obsidian-livesync/releases/tag/0.23.21
Discussion
if you are troubled with using IBM Cloudant, please set 1(MB) to Maximum size of chunk send in one request, or disable Send chunks in bulk. Sorry for lacking handling.