Just posted Weaver Xtreme 1.2.1 with a critical bug fix for mobile menus.

Download Weaver Xtreme Version 1.2.1

The current version on WordPress.org (1.1.3) does not have this issue, but 1.2.1 is necessary for the latest Weaver Xtreme Plus.

Version 1.2.1 should be available on WordPress.org shortly, so you can safely wait if you prefer.