So, I just want to disclose that I work for JMP. I use JMP heavily every day. From manual click through analysis to a lot of scripts to automate things. In my hands v14 and v15 are super stable.
There is likely an operating system issue, or a memory issue you are dealing with.
First check to see that you are using a current licensed version of your operating system.
Next check to see how much available memory you have before you start to run the script. Subtract from that the size of all the data tables your script is going to open. If Data*2<free memory, your OS might terminate an application unexpectedly when the system runs out of memory.
The second first thing to do, and this is such an easy and important thing. GET THE LATEST VERSION OF JMP
if you are running v14, you should be running 14.3, not any other earlier dot release.
Go to this link to get it: https://www.jmp.com/en_us/support/jmp-software-updates.html
If you have v14, this is free, just download it and install. Even if you have a slow internet connection its fast.
Most people have JMP license that allows them to upgrade to the current version of JMP. Thats JMP 15.0, and in a couple of weeks 15.1 will be released.
If you have 14 and you want 15. Click Help, Click About JMP and discover who your internal license admin is and tell them to call their JMP Sales contact to get you the update you need.
The last thing: This is important! Send your crashes to support@jmp.com. the developers are mining error log data and constantly (about every 6 months, in fact) releasing features and updates to make JMP work better so you can work better. (like I said get the most up to date version)
The second last thing: dig and figure out what is happening, it sounds reproducible, when you get to the point where you can ask some specific questions, there so many JSL guru's here who would love to help.
Cheers,
B
JMP Systems Engineer, Health and Life Sciences (Pharma)