In sequence diagram, message detaches from the lifelines

[gusega]

Hi all,

I have a sequence diagram with 2 lifelines and a message. I add another message:

1. the message automatically adds to the top, while it should automatically add to the bottom (as it's the latest message)
2. when manually rearranging the message it gets constantly detached from lifelines. Re-attaching the message to lifelines usually resents it's position at the top.

This is really a struggle and costs me a lot of time. Sometimes blue outline changes to green outline, though, i am not sure why or how that happens, then message seem to keep it's place.

I have a video recording of this, but it's 70 mb. not sure where I can upload or send it.

Cheers.