The source and tracing sides will definitely get fully integrated. This is only the second beta that even has the source side at all, so it's just "early days".

The line/statement level traditional debugging is possible to implement with currently captured information, but the implementation is seriously hard, likely in 2021+ timeframe.

About the specific issue: I'd really like to get that fixed, do you think you could shoot me an email so that I can followup in case that i cannot repro the bug (my email is in the contact page)?

Many thanks for the feedback & apologies that the initial experience wasn't so great