Debugger malfunctioning

I am using intellij IDEA for ruby development,

In the watches… when I want to check some variable…
the value for same variable is showing diffrent…
I am sure there is some problem in the debugger… any idea?

Even when I watch Thread.list:
it shows:

Hi Ajay,

You could run the same code from the command line with the -r flag
handed in to the ruby interpreter to isolate whether this is an IntelliJ
issue or an issue in your code.

If it is in IntelliJ, you should report to the appropriate tool