Hi!
I've been using LRT 4 and 5 succesfully for some years.
Now I'm on a new computer with LRT6 and got some problems.

Nr 1 White balance doesn't change correctly after auto trasition. I get all kind of temp values.
Nr2 When I'm trying to reset and do it again, my old key frames still comming up in lightroom. At my first attempt I used three key frames. After deleting and reseting I'm trying to use two key frames but when reloading to lightroom there's still three key frames.

I got the latest update on DNG converter and LRT.
Sorry for bad english.

You need to follow the workflow carefully. Make sure to read / write metadata for the full sequence always in Grid View in Lightroom which no filters applied after every time you switch back and forth.
For the White Balance: you need to make sure that if you want to keyframe the WB, you will have a "Custom" WB on every keyframe and not for example leave the first Keyframe on "As Shot", and then change only the 2nd keyframe.
Please start over from scratch: remove the sequence from Lightroom, in LRT do "Metadata / Initialize". Now follow the instructions on https://lrtimelapse.com/workflow/visual step by step.