Whenever I copy & paste text (paragraphs or words) within the editor or from somewhere outside, I get an invisible character at the end of each line/paragraph. When saving my edits, the character fortunately vanishes, but it is very annoying when you always have to double press delete in order to reach the actual end character of a line/paragraph. Especially when editing data in block-style templates (2017WikitextEditor), the constant double delete gets on my nerves and is the cause of a lot of typos.
My browser (Chromium, btw) tells me that the character is actually an image (?), namely
<img class="ve-ce-chimera ve-ce-chimera-webkit">
Hope that someone can fix this!