Version switcher arrows missing

i use both mobiel and desktop for this. normally they appear in the chat, but for some reason a bug (apparently) is causing this to happen. Which is incredibly frustrating as i use ChatGPT for personal fantasy stories. When i am back home i use the Desktop, when i am at work or someplace else i use my cellphone, both reload before use to make sure its synced properly so i can continue with my story. I know it doenst appear on the Cellphone, that is why when i do edit on my cellphone, i know it will by synced back home on my desktop as well, and i only carefully edit parts, or simply continue as i am happy with the outcome of the chat.