I think this issue has more to do with my browser than the site itself, but want to report it just in case.

When inputting text into a Rich-Text input field, the arrow keys on my mobile device's software keyboard do not do anything. If I disable Rich-Text they work just fine. This has only ever occurred on OpenGameArt.org. I have never had this issue on any other site. Though, I don't know of any other sites I've used that had Rich-Text input fields.

I am using Android OS 7.1. My browser is AdBlock browser (based on mobile Firefox). However, if I use Chrome browser the arrow keys work with the Rich-Text fields. So there is some kind of compatibility issue between the first mentioned browser & the site. Not sure if there is anything that can be done on the site to fix that incompatibility.

If I remember, I will install Firefox browser later to see if it functions the same.