I have a similar problem, and maybe you can help. This is all through an investment advisor, I didn't do any purchasing/selling on my own. But the TDAmeritrade1099 lists a line with Undetermined proceeds (0.59 total) for zero (quantity) of SGOL, and cost basis listed as zero. Footnote says it is a principal payment, with cost basis factor listed. In Fees/Expenses details of 1099, it lists this as "-0.59" (negative value) with notation as "gross proceeds investment expense". And yes, there was also a short term sale of 118 shares of SGOL as well, listed separately. I know how to report the 118 share sale, but what do I do with this $0.59?
