Problem with Source Mode

[MasqueTLDF]

Currently, I'm having a lot of issues with source editing. Whenever I click on or try to interact with a certain line of text, an entirely different line is interacted with. (Same problem when highlighting lines.) This is a pretty big issue since I'm stuck with visual editing, and a lot of things on the wiki require source editing to change. Is anyone else experiencing this problem/how can I fix this?
Example

 

[Testarossa002]

Reload the page while on source editing
Fixes it right away

 

[MasqueTLDF]

Reload the page while on source editing
Fixes it right away

I love you, you're the best, thank you, you're amazing, here's a cookie

 

[Vzearr]

If you want to experience less bugs switch your preferred editor to source editor here. That's if you can't be bothered to refresh the page most of the time.