re: What scene did the Last Jedi lose you?

The opening scene with Poe and Hux started the downward spiral. The humor was forced and out of place, as was the majority of the rest of the "humor" in the movie.

When Luke tossed the saber over his shoulder, I knew the movie was going to suck pretty bad.

Then came space cow titty milk, and that pretty much did it for me.