I transferred $5000 in federal tuition to a parent, and want to transfer the equivalent in provincial, but the software says I have 0 available to transfer.

I have tens of thousands in tuition credits from this year, and I know some were used to offset my income taxes (both federal and provincial), but there should be plenty left to transfer to my parent. 

The federal amount maximum allowed was $5000 and I entered that, but the next window tells me my provincial amount available to transfer is 0. How do I fix this? It's not possible for my provincial taxes to have eaten up all my tuition credits.