Page Cache Pointing to previous js/css hash version

I use the hummingbird plugin along with cloudflare, which is linked to it. I enabled the “asset optimization” feature recently but had no problems. I recently made changes to the site and created new js/css files that have a new hash on the filename. I cleared the cache on hummingbird, which should clear the page, browser, and cloudflare cache. Then somethign seem to broke. My homepage just didn’t load. I disabled the “asset optimization”, cleared cach everywhere. Still had the same problem of the homepage trying to fetch and older js/css file.

Next step I took, I went into cloudflare and set it to “development mode” which should force my wordpress site to point to the js/css directly to where the site is being hosted (siteground). Still had problems.

Kept clearing cache everywher and nothing worked on the homepage. Every other page was working fine. I fixed the problem, but I basically had to duplicate my homepage, and assign wordpress a new static page (which was a duplicate of the homepage).

Would you know what caused the homepage to refer to an old js/css file? Is it because of the “Asset Optimization” feature? How can I avoid that problem?