I deleted all my t5's and re-entered them.
The 50/50 issue on went away on Interest but NOT dividend.
Interestingly, after much research, the issue is..
When I enter T5 Dividend income, the system is ALSO putting it on the T1 Worksheet as an Eligible Dividend that I did NOT get a slip for. This happened the first time I entered them and after deleting all t5's and reentering them, it did it AGAIN. Therefore the income is getting reported twice which was why I initially thought the issue was with the 50% to spouse field.
To fix, I manually deleted the number from the T1 Worksheet. Had I not reconciled Turbo TAxto my input, I never would have caught this.