When using Shadow Strike my character disapeared, with the inability to act.
After trying to troubleshoot it only restarting the session was able to debug me.
See video below :
Shadow Strike Bug
Happened again, might be due to the enemy, see below :
Shadow strike bug part2
Yeah, this is an annoying bug that can happen at any time with SS and is more noticeable the more you spam it. You can get out of it by evading or using a movement rune, otherwise you can’t do anything and will get damaged and cannot attack.
does portaling with the map not work anymore? 
That probably still works too unless you’re in somewhere you can’t portal.
In the first instance I tried to portal, I got TPed but my character was still vanished and unable to be controlled. I don’t remember if I tried to dodge but will try it if i get this bug again.