How to fix no output on local-exec script in Terraform?

When you use variables in a local-exec script, the entire output of the script will be removed if just one of those variable is considered “sensitive” by Terraform. The output will look like this:

null_resource.xyz (local-exec): (output suppressed due to sensitive value in config)

The solution is to use the nonsensitive() function, but you should really do that only for debugging purposes.

More information here.