Are you sure you are not using a plugin that optimizes CSS and JS?
If so, you need to deactivate that as it could corrupt the theme CSS and js. In doubt, temporarily deactivate ALL non weaver plugin and see it that makes a difference. If it does reactivate one by one to find the culprit
ALso, can you copy the system info box in the theme help page and paste it here so we have all the versions
And clear all your caches