I've just migrated a craft site to a staging server from a local environment and have come across an odd bug I have no idea what's causing it.
If I use the word "select" in a blog post, the entry doesn't save and instead goes to a 404 page. If I capitalise a letter, "Select" for instance, it saves fine.
It's a rich text field that has the content and this didn't happen on my local environment either. There doesn't seem to be any errors showing up in craft logs as far as I can tell either.
Does anyone have any suggestions?