Steps to reproduce the scripts error on a RB750Gr3.
1-Open winbox.
2-Go to menu system/script.
3-Add the hello-word script and place the following code:
:global helloWorld;
:set helloWorld do={:put "Hello World.";}
4-Run the script.
5-Verify that the global variable “helloWorld” exists in the environment and the run-count property of the script is > 0.
6-Close the script repository window.
7-Wait 5-10min.
8-Go to the system/script menu, verify the variable “helloWorld” does NOT exist in the environment and the run-count property of the script is 0.