Autocomplete does not give the correct output

[marshblocker]

I have the following code

\begin{document}
in
\end{document}

when I press Tab, it gives me the following completions

Since \in is what I want, I pressed Enter to receive it but instead my in auto-completes into \int instead of \in. This also happens with other commands like phi and theta where it auto-completes into the next suggested command (e.g. phi auto-completes into \varphi instead of the topmost suggested \phi). This seems to be a general behavior, not just on the commands I've listed,

[Dilemian]

I also have the same problem.

Choosing \varepsilon gives \epsilon, and vice versa.
Similarly for others: \vartheta and \theta, \varphi and \phi