Are you working remotely using WSL / ssh etc. ? Is Tabnine not working?
There is no known bug with working remotely on VSCode with Tabnine, but there can always be problems along the way on different setups on different setups.
Before the steps, try to follow the solution here.
Restart your IDE. Kill Tabnine completely and reopen VSCode.
Do you have other plugins installed on your VSCode? Try deactivating them and see if the problem persists.
Are both updated? If not reinstall Tabnine.
Are you using a proxy/antivirus/firewall?
Please see Connectivity possible issues
If Tabnine is whitelisted and you still experience issues, make sure you set the env variables in set in the right place. (for example, check the .profile config)
In conclusion, most problems we had were related to network settings, so please look into your setup and make sure Tabnine can access it's servers.