Hey @Asisnath ,
Ok, I know what is wrong. Somehow your IronPython search paths have gotten changed and some old set of the Ladybug Tools core libraries on your machine are interfering with you using the correct (latest) version.
What do you see when you follow the steps to check the IronPython Search Paths here?
If your machine is set up correctly, then only one of the following paths should have the words “ladybug_tools” in it:
