Hi,
I have the same issue. I can create the note in OS X or on Android and they sync without an issue. Once opened in web browser, I have either the issue Bloulou has mentioned above, or (even worse), all my bullets gets doubled, eg:
this
is
a
test
=> turns into
this
is
a
test
In my experience, the Bloulou issue happens w/ Chrome, the "worse" version I am mentioning here happens with Firefox.
Are you joking? I believe that the sole reason that evernote has introduced a new forum is because on the old one it was too obvious how little they care about issues of (even) premium users and how unprobable bordering with impossible it is to expect a fix (any fix, of any issue, no matter how critical, no matter how many years ago it turned up). I've been premium user as long as I can remember, If all my notes from last decade weren't so unfortunately stored on this god forsaken platform, I would't touch this product with a barge pole... I suspect this is the case with 90% of current evernote user-base.
Please note that using evernote is a one way street only and you will suffer for your decision sooner or later (very likely sooner, their downtimes are always unplanned and rarely well reported)...