I found a strange thing about Combiner Object's Input Pull check.
vs
When checking Pull of Input condition, 2021.1.x edition does not activate the Pull Strategy.
The only Pull Requirement is active.
But 2021.2.x edition activate two fields all of Pull Strategy and Pull Requirement.
What's the problem of it? Only in my PC? It's not. My another PC and notebook show the same strange problem.