DoYouLikeHam

https://www.multisim.com/content/T9ESKynhGvh3RV5hnJBYbR/high-leg-load/open/ It's a 10A load connected to the high-leg of a 3-phase mid-tap delta-delta transformer. I'm curious to see the current on the primary. Or, is it simply that such a circuit can not be solved? if that's the case, is there a lay-man's terms explanation as to why?