Retirement tax questions

Are you 70 1/2 or older?    No part of a RMD is eligible to be rolled over.   Any such rollover would be an excessive contribution subject to penalty until removed.    That is the reason that TurboTax will not allow a rollover if a RMD.  Only amounts that exceed the RMD, after the RMD has first been satisfied can be rolled over.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**