Why there is a reduction in foreign taxes adjustment in carryover calculation sheet by Turbotax?

Current year foreign tax paid: $198,886

Current year foreign tax allowed: $146,909

Unused and carried forward: $51,977

 

TurboTax took the Form 1116 Part III line 12 Reduction in Foreign Taxes number -$38,107 to reduce my carry forward amount from $51,977 to $13,870.

 

I am wondering why. Thanks!