Should I send 1099s?

I’m an artist.  My spouse and I file a joint return of form 1040 with schedule C.

I invited other independent artists to join me in a show (at my home).  For convenience, I swiped all credit card purchases on my Square reader— $4000 for other artists, $1000 of my own work — all $5,000 landed in my bank account.  When the show ended, I wrote a check to each artist for the amount she had sold.  Now I learn Square is going to send _me_ a 1099-K, listing the $5000 of credit card transactions even though my income from the show is just $1000.  This is going to look suspicious to IRS, isn’t it?  Should I send 1099-NECs to all the other artists to prove to IRS that $4000 wasn't really part of my income?

(Irrelevant, I suppose, but  _I_ paid the sales tax on the total $5000 — again, just for for the sake of convenience.)

Thank you for any advice you'd be will ing to give me.

Mary Ellen