Guys, I run a solver and I could not understand the result of a specific spot:
The ranges I assigned to OOP and IP

Final Board:

Action:
BU Opens 2.5X,- BB 3 Bet 4X, BU Calls
Flop:
OOP bet 66% IP Calls
Turn
OOP bets 50% IP calls
River:
OOP Bets 66% IP?

Then when IP holds pocket tens, all combos but one is a call. Why this one is a fold? I imagine a blocking effect, but cannot figure out which one.