latest Lemmy 0.18.4 beta5 crashing when sync

Does anyone has same problem like mine? When I am running my instance using lemmy 0.18.4 beta5, it will crash and keep restarting. It will work fine if I shutdown proxy. I am the only user on my self host instance. As soon as I start proxy, the lemmy container will crash. Also, if I change the version to 0.18.4, then everything will back to normal. The crash looks like related sync some post from remote. Once it running fine with 0.18.4 for some time eg a few hours, if I switch to beta 5 again, then it will work fine for a few hours, then sunndenly it keep crashing again until I rollback to 0.18.4.

I tried to change some log level, but I don't know much about docker, the lemmy instance only log that 2 line and no error no exception.

This only happen on latest beta5, and not always reproducable, as I mentioned above, it crash (I feel) when trying to sync some remote message. My instance is self host and I am the only user on my instance. And it has been running fine for more than a month until recently my image (using latest) update to latest beta.