When editing with JCE i see i have my text all filled with

<span style="-webkit-text-stroke-color: rgba(0, 0, 0, 0); caret-color: auto;"> </span>

Of course i can not see anything while editing, but if i go to the "code" tab, then i see this. Im not using text stroke, or changing any text property. Why is this?

Yes, this is possibly happening when pasting. Im copying and pasting from other JCE editor instance, or sometimes from Notepad++.
But the pasted code does not have this <span>.
Im not sure how to replicate the behavior, because i encounter this from time to time. I will try to pay attention and see when it happens.
I was hoping you may know the possible cause... just like the "nofollow", that is added automatically to the links. Maybe this was something similar.

Im not being able to paste a text as reply here. Im considered a bot i guess.... maybe because my reply time is short and the text is long ¿?
Ive wrote the reply offline, and now im copy-pasting it with no luck 🙁

Now im using Opera. I will make some test with other browser.
But i think that this is because the .panel class has white background on the CSS, so when copying text from this <div> its also copying the style.