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Check the log: in many cases you'll find more details about CodeLLDB problems in its log, which can be found in the VSCode's OUTPUT panel. Be sure to switch view to "LLDB" channel.
If this proves unenlightening, add
"lldb.verboseLogging": trueinto user/workspace settings to enable more detailed logging, and try again.
Check whether your issue is already covered here:
See if it's already answered in Discussions.
If you think the problem lies in CodeLLDB itself, please file a bug.