Hi @MoHcmp, as indicated in the welcome post, our time for free support is limited. Usually we answer within a few days, however the exact point depends on our work load and the topics we’re working on. If you are interested in professional support with a guaranteed support time please see here.
Now when you ask a question it would be helpful to:
- mention binding and renderer set (e.g. React and Material UI)
- the version which has the problem (e.g. latest stable or next preview build)
- what exactly the problem is that you’re having
I checked your example with the latest stable and preview builds of React Material UI. In the latest stable build (2.5.2) it works perfectly fine. The preview build (3.0.0-alpha.1) seems to be partially broken (i.e. it adds arrays within arrays when adding children instead of objects), which makes sense as we recently overhauled the reference mechanism and we know that there are some issues left.
So if that is the problem you have, then we’re already working on it and intend to fix it before the stable 3.0 release. If not, then please describe your problem in more detail.