Trying to add sub-plans into a master plan but they keep disappearing

Hi there - 

I am currently trying to add additional sub-projects into my master plan.

However when I collapse current sub-plans and go through the steps to add a NEW plan - it gets added then when I try to expand the NEW plan it disappears. 

I have also received the error that I cannot insert the plan into a consolidated plan - then I will find the plan I was trying to insert listed in a sub-plan outside of the master.

Has anyone experienced this before?

If so how did you solve for these errors?

Thanks for the help.

Kattie Fredrick (VML)

Kattie