WooCommerce Payment Status Fix

The payment gateway confirms every transaction, yet WooCommerce still leaves the order stuck in “Awaiting Payment.” Nothing has been added or updated recently on the plugin or theme side, so the fault seems deeper than a simple compatibility clash. I’m using a gateway classified as “Other,” not PayPal or Stripe, and I have not run multiple test purchases to confirm whether the problem is every time or only sporadic—your first task will be to find out.

Here’s what I need from you:
• Pinpoint the root cause through clean, documented diagnostics—logs, database checks, and gateway callback traces included.
• Implement a reliable fix so successful payments automatically move the order to the correct status.
• Run at least two test transactions to verify the repair and show the order lifecycle behaving as expected.
• Deliver a brief report summarising what was broken, what you changed, and how to keep it stable after future updates.

Please tell me about similar WooCommerce troubleshooting you’ve completed, how soon you can start, and the estimated turnaround. I’m agile on timing but prefer a concise schedule with clear milestones. Looking forward to your insights and a solid resolution.