I got a K-1 with box 16 checked indicating there is a k-3. but K-3 is not available. How can I file this without K-3

I called the entity that produced the K-1, they told me the K-3 will not be available until end of June. How am I supposed to file the tax then? TT asks me the info on K-3 after I entered the info for K-1.