Remote redis server redisinsight fails to connect

I have a redis server running on a remote machine which I would like to connect to with RedisInsights. I can connect using “redis-cli -h remote-server” but when I try with RedisInsights I get “Error, Server closed the connection”.

BTW, I’m using the flatpak version, only because the NixOS version opens to a blank page. So there could be some flatpak related issue.

Thanks in advance for any help,