Short term capital gains for sales not made

[j-m-r2019]

I received a 1099 composite that shows short term sales from an ETF that Schwab stated are short term sales generated by the "income trust" which is an ETF.  Charles Schwab said these are "income trusts" and that the trusts did this to generate cash. However, these short term sales show up on my 1099 as (proceeds) for every month in 2024. I did not receive any proceeds or disbursement from these short term sales, and yet, I appear to have to pay short term capital gains on gains I didn't receive! In addition, there is no cost basis so I have no idea what I'm supposed to do with this 1099.  Here is the language on the 1099.

Department of the Treasury-Internal Revenue Service Copy B for Recipient (OMB No. 1545-0715)

SHORT-TERM TRANSACTIONS FOR WHICH BASIS IS MISSING AND NOT REPORTED TO THE IRS - Report on Form 8949, in either Part I with Box B checked or Part II with Box E checked, as appropriate.

 I cannot understand why I have to pay a short term capital gain for proceeds that I never received.  Can anyone help?

[DaveF1006]

Yes, it sounds like Charles Schwab may have sold these investments and reinvested the funds elsewhere in your portfolio increasing the basis of your other investments. This is normally disclosed on a supplemental disclosure form that comes with your 1099B.  You also may wish to contact Charles Schwab to find out what they did with the proceeds of the sales.