Hello,
LESS support seems to have broken RTL support in Vector.
The bug is reported as https://bugzilla.wikimedia.org/show_bug.cgi?id=55779
It seems like the commit that caused it is https://gerrit.wikimedia.org/r/#/c/85920/
This is already deployed in Commons and some other wikis. This must not be deployed further, and should probably be reverted in the wikis where it is already deployed until RTL support is fixed.
Thanks.
-- Amir Elisha Aharoni · אָמִיר אֱלִישָׁע אַהֲרוֹנִי http://aharoni.wordpress.com “We're living in pieces, I want to live in peace.” – T. Moore