Handoff preventing sleep

I have noticed my MBP 13 inch 2017 drops battery while in sleep mode... sometimes up to 5%. It seems the culprit is Handoff, since it is listed in pmset -g assertions results as the responsible for "PreventUserIdleSystemSleep" and the value in PreventUserIdleSystemSleep is 1. When I disable Handoff in System Preferences > General, pmset -g assertions shows 0 for PreventUserIdleSystemSleep.

Why is this happening? Already reseted SMC and it does not solve it. Anyone knows something about it? Does it happens on the Mojave Betas?

Thanks!