CF Pages sometimes returning index.html for a file that exists

Hey, i seem to be facing a very strange issue here.. Im hosting an application using Cloudflare Pages, and as of today, it started sometimes sending the contents of my index.html as a response for a requests for a file that exists in the deployment, as if the path was a 404, but ot only seems to do it when i request it using a browser user-agent, has anyone faced this issue before?