Wrong suggestion gets inserted

Hello. Lately I started having an issue. I type a mistake. Middle suggestion show what I need. I tap it, but a different word than was suggested gets inserting. Very annoying, and started happening only lately.

I'll try to provide all the information required.

Device: Sony Z5 Compact
Android version: 7.1.1
Swiftkey version: 6.7.1.34
Steps to reproduce:

don't know how to tell, because happens randomly. Sometimes correct word gets inserted, and sometimes same word but different ending.