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For the solution at joint B, I believe the moment should be positive 3.61 instead of -3.61
First, I noted that the moment on the distribution tables seems to always reflect the value on the right side of the joint (the assumption seems correct so far). Noticing a difference from this pattern, I confirmed using the shear area (the triangle described by -29.4*2.94/2) and adding that to the moment of + 46.78 kNm and found that the moment would be almost + 3.61 kNm at the joint B.
Mainly pointing this out so others don’t get confused and maybe have a way to double check themselves. I am still so happy to have found these lectures!
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