Can't drag animations in Sequencer. Weight keys are buggy.

I’m having problems with the sequencer. Sometimes I can’t drag some animations and the weight values are not sticking.
In a new sequence, the only test I’ve made works fine, but in this scene that I had before the 4.15 update I have this problems. Also, all animations in the sequencer came with blue constant keys at the start and end of the animations.

Anyone else having the same problems?

127184-sequencerbug.gif

I had the same problem and was able to circumvent it by deleting the animation and re-assigning it.

I have this happening all the time with almost everything. If you click off to some random object you can then move stuff

Yup, same thing happens to me and its very annoying.

Having the same problem here. Any fixes yet from the staff?

This bug is very annoying! :S