Captivate 2017 and zip problem

I have been using Captivate 2017 and successfully published 5 lessons but one lesson is not zipping correctly. When I publish to my computer and ensure zipped is selected, I check the zipped file and it is zipping to at least three times the size. The original Captivate project is 19,512 KB and when zipped is 64,707 KB.

Additionally, the zip folder is not packaging all the Captivate files but retaining the individual files. When zipped, it usually shows a folderbut it is showing all individual files:

Does anyone have an answer to these two problems? I need to publish that last course.