missing 1099 from defunct exchange — need guidance ASAP

I publish illustrative scenarios prepared by my practice. All participants and conversations are fictional. The fictional posts are not posts by real users, accounts of client experiences, or reports of actual results.
Illustrative scenario prepared by my practice.
For informational purposes only. This is not legal advice. Laws vary by jurisdiction. Consult a qualified attorney for advice specific to your situation.
Hypothetical question

Has anyone dealt with something like this? I'm not sure what my options are.

missing 1099 from defunct exchange. I've been dealing with this for about 9 weeks now and the situation isn't improving.

Am I overthinking this or is this a real legal issue worth pursuing?

Illustrative response

NAL, but from what I've read, you should check your state's specific laws. Take the above with a huge disclaimer that I'm just some person on the internet.