Hello,
I’ve checked your Home page editor and changed bg image of this section https://prnt.sc/bkc5mRyXOoVz > https://prnt.sc/os4cgp-4GHER When the editor has closed the changes are not visible, but they are visible via an incognito browser window – https://prnt.sc/KxxYP-WJhT5b It means the problem is caused by some kind of cache. Try to disable/clear all cache, if this doesn’t help, contact your hosting provider to get assistance.
Regards