Reset action group variable to default fails

Action group variable is of type boolean, specified with default value “true”.  Getting the following error when running a reset variable action:

Reset Variable to Default Reset variable FileIsGood to default 09:47:03 09:47:03 00:00:00
Error
An error occurred. The variable could not reset : Variable FileIsGood Is of Type Boolean Failed to set the value : Invalid argument 

I’m not able to reproduce this here, so there must be more to it than a simple default value issue. Are you able to narrow it down to a small project that shows the error, if so the please send it to support so we can take a look.