If you find a bug in LispWorks, please report it to Lisp Support using the bug reporting facility in LispWorks.
Works > Mail > Report Bug (or equivalently Help > Report Bug ) invoke a Mailer tool with a message template containing system information that will help us to solve the problem.
If you are in the debugger already, then choosing the Report Bug command creates a message template with the stack backtrace: use this if possible.