OK I found a post from this year, hope this helpshttps://ttlc.intuit.com/community/taxes/discussion/excess-social-security-multiple-employers-same-ein/00/197588...
Oh yeah there is a problem with having the same paying agent. I don't know how they work that out. It's usually just for excess SS, haven't seen it about CA FTB...
Oh, sorry I missed the part you said about your employer. Did the employer get a new EIN too? Then it should be ok if you got the excess refunded. Otherwise you...