How to solve "can't find stack" error

[Kay C Lan]

Would seem easy enough to test your theory. Insert the second line of code,
the one that reads the cprop, in a try statement. If it catches an error
wait 5 seconds (just to really test your theory) and issue the command
again. For those not having the problem they are not burdened with a wait,
those that are you'll soon know if it fixes the problem. If so you could
test various wait periods to see what is the shortest that consistently
solves the problem.

HTH