Failure in Wye Delta transformer configuration

[DoYouLikeHam]

Hello-- 

I'm getting this 'a simulation error has occurred.  would you like to run the Convergence Assistant to attempt to resolve this problem automatically?"

This assistant fails to find a solution.

This seems to be related to the blue connection (if I remove it, I get a solution).

Ultimately, I want to have one of the secondaries to be split phase (e.g., 277:120:120).. but simplified to this to see if someone has a suggestion as to how to resolve.

The MS file is attached.

Note: I'm *very* new to Multi-sim, and this type of simulation is for me is quite rusty..  tips would be helpful.

[DoYouLikeHam]

Looks like I may have not have actually attached the MS file.. trying again.

[DoYouLikeHam]

I got the idea/solution from this thread: https://forums.ni.com/t5/Multisim-and-Ultiboard/Delta-source-3-phase-Delta-Delta-transformer-with-a-... to add a small resister in-line w/ each transformer secondary, and seems to do the trick.