Issue with Automatic Language Switching on Keyboard

Hello!

I’m experiencing an issue with my iPhone 14 Pro Max running iOS 18, where the keyboard language switches automatically while typing without pressing the globe icon. This happens even when I don’t touch the language switch button.

I use four languages on the keyboard (Russian, English, Korean, and Kazakh), and this issue occurred on my previous iPhone 14 Plus as well as on my current device. The problem has been happening for almost two years now. It doesn’t occur all the time but happens periodically, which makes typing inconvenient.

I would appreciate any help in resolving this issue or advice on possible settings to fix this bug.

Thank you in advance!