Response:

If you can determine when the problem first happened then you may be able to somehow rewind to that date/time. It may also help you determine which version you were running at the time. It’s good to know this, since the problem may only be reproducable with that version or on that date.

I wonder how many new problems will appear on 29th February 2020?

Reference:

• Step 12 – Has it happened before?
• Step 22 – Timing?

Related questions:

• Did it work last time?
• Has it been tested?
• Has it happened before?
• Have you already fixed the problem?
• Have you raised an issue?
• Is there a defect?
• Is this a known problem?