The rotate around point module no longer adds in particle position, so it does not account for other forces and modules effecting the particles, and will only spin in a circle by default. The user can uncheck Set Particle Position and use the modules output outside of the module as a workaround, but this is less convenient.
The particles will rotate in a circle regardless of other forces applied to them.
The particles will respect existing forces, but also rotate in a circle as if they were being stirred.
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-81921 in the post.