Why does this happen?
How can I fix this?
Logos 8.6 added some new program settings - from the release notes - https://wiki.logos.com/Logos_8.6
Program Settings
My speculation is that you have Double-Click set to do a lookup and "Prefer Lemmas" set to "Yes".
Try experimenting with those to get the combination you want
Thanks Graham,
I missed Prefer Lemmas, in my case it should be set to "no" as the LBD use English Headwords.