I have been using JNPG with sim pass for more than 2 years now.
Solo play or all kinds of multi play with on-line competitors has worked fine. I can remember a handful of crashes or freeze sessions.
That is not the case for local multiplayer games. During the 2 years I have tried it just a few times. Always freezes after a few holes.
A few weeks ago my son picked up golf and we have done some 20 session/rounds in the past week.
We have done 2 or 3 local players in either "Solo" or "Multi" player game modes. We never managed to play 18 holes.
The game freezes post shot while the post shot screen/box is visible. It can happen after 1 hole or a few holes. Totally unpredictable and it happens on all kinds of courses. Official and user designed. Only way to get out of it is to kill JNPG from the task manager. When the game is restarted I have the choice to "resume".
In all those 5 or so cases when we have tried that. Game starts from the point before we hit the shot that led in to the freeze situation. The game gets stuck the same way after that shot every time.
So we tried to run solo mode with only 1 player because that has worked well before. After 8 holes it froze again.
Checked with the sim play crowd in the chat and many people have experienced similar problems lately, kind of surprised nobody has reported it.
I would rate this as a serious issue and hope you look in to it sooner than later. I would be happy to help debug the problem if required.
PC: Win 10 64bit Automatic update enabled, Nvidia GTX970.
Internet connection: 1Gb fiber. That thing is lightning fast and reliable.