Additional input method every time I start my laptop

Hey everyone, I’m having a weird issue with my input methods on my laptop. I normally use two: English (US) and Chinese (Simplified). But every time I start my laptop, an extra one — English (Singapore) — randomly appears in the taskbar.

What’s strange is that English (Singapore) doesn’t show up under Settings → Time & Language → Language & Region. My usual workaround is to manually add English (Singapore) there, then remove it right away. That makes it disappear from the taskbar and everything works fine… until I restart the laptop, and the whole thing repeats.

Just to clarify, my Windows region is not set to Singapore, and as far as I know there’s nothing “Singapore” configured on this laptop at all.

Does anyone happen to any idea how to get rid of this permanently? Thanks a lot!