I found this using r115 and seems like it still occur in r116. So basically I defined a value for a local variable, and do a wait, but after the wait, the value I just entered for the local variable is missing. Google chrome console gives me:
Check: local var stack not big enough
This doesn't happen for global variables. Another thing is, even with wait time set to 0, local variable value is still gone. Sometimes the wait can happen forever (more than the value I entered, even for 1 second).
Plugins used: Function, XML, and Chrome Console.