Exponetial growth makes my game crash with no error message

[alberted]

In my game I have this line of code at the top of the create event for the enemies in my game:

size=random_range(0.5,oplayer.thl*3)

The code determines the size of the enemy. The maximum size of the enemies is suppose to grow through out the game. If I make the maximum size grow linearly, it works fine, however, it's suppose to grow exponentially. I've tried to program it a million different ways but when I make it grow exponentially, it just doesn't work, and i have no idea why. The code above is my latest try. The maximum size is essentially decided by a variable from another object, which grows exponentially. However, i've tried many completely different methods, and none of them work.
The game always shuts down about 30 seconds to 2 minutes into the game, and the only error message i get is "FAILED: Run Program Complete".

Can anybody help?

 

[MacGregory]

Set to default script compiler

 

[alberted]

Set to default script compiler

How do i do this?

 

[Nocturne]

That code you posted should not under any circumstances cause the game to finish running. Have you got a game_end call in there by mistake or something by any chance? Also, you can add a breakpoint to that line of code then check the value and step through the code to see if that is indeed where the game is crashing and what value it actually holds.