Look at the notation. If there are groups of 4 dotted lines per beat, it's an even style. If there are groups of 3, then it's a swing style.

That is unless you have changed the option to show triplets (from an even style)

using the Piano Roll (old version) you can actually see where the note was added. It may be exactly on one of those dotted lines or even between them. Switching between the notation views can be quite helpful.

BIAB for Windows Version 2019 (643)
Windows 10 (1909)