The doctors were encouraged that, when he spoke about his mother, his expressionless mask slipped slightly, and he looked as if he was struggling not to cry. (original)
Question : Is the original grammatically correct?
Would you tell me how to understand the word "that" (conjunction) here?
I guess :
The doctors were encouraged that, when he spoke about his mother, his…
=
Someone encouraged the doctors saying that or by saying that, when he spoke about his mother, his…
Is my guess grammatically correct?