Oh bummer. You didn’t need to do it twice. Just Propagate Properties. You need to set a shortcut for this, since you need it all the time! I use Ctrl-Alt-P.
Yup, happened to me too. Flip the tie first, then adjust the LV last.
Glad it works, at least sufficient for now. I imagine the next improvement will simply be a “reverse” function for LV ties, since this is a common need. And since Dorico is pretty smart about this stuff, a “reverse” function would probably move the LV to the start of the tie chain automatically… I hope!