We apologize for the instability of composr.app and appreciate your patience. We are working on the statistics addon and trying to find an optimal way to store and render data. Unfortunately, we have yet to find a solution that can handle the traffic (and therefore, tens of millions of statistical records) of composr.app. We're working hard on one.
EDIT: CSS Logical Properties are going to be broadly available soon https://caniuse.com/?search=CSS%20Logical%20Properties - so it makes sense to reimplement RTL support on top of this.
Check the documentation to make sure it is consistent with rtl-support being tested but not regularly tested.
EDIT: CSS Logical Properties are going to be broadly available soon https://caniuse.com/?search=CSS%20Logical%20Properties - so it makes sense to reimplement RTL support on top of this.