I only noticed the error when I compared the comparison summary for both spouses. Didn't understand why Taxable Cap Gains were attributed to one spouse only, even though I specified a split in the T3 data entry. I had to work backwards then make individual T3 entries for each spouse, with manual calculation for all T3 boxes based on % distribution for each spouse. Boxes 52 and 53 don't appear to be linked to the split percentages.
