Problem getting $250 cash contribution accepted.

I see many are having their cash contribution entries rejected.  My problem seems a bit different. from those I've reviewed.  The majority of my contributions are as QCDs through my IRA.  I also made $250 in contributions that were not from the IRA. I entered all contributions as donations to charity.  This means that line 10a on 1040 is far in excess of $300.  Error fix only allows a $300 entry for 10b, even though $250 is all I can legally deduct.  .Will appreciate help.