VueformBuilder preview$ and el$.form$.schema

[dan-dazlab]

In Vueform I can access schema from any element with el$.from$.schema.
But this doen't work in VueformBuilder.
I can access it only from instance: this.$refs.builder$.builder.schema

other problem is with

const loadingPromise = this.$refs.builder$.load(form);
loadingPromise.then(() => {
      // wait for this.$refs.builder$.preview$ to be initialized
      watch(
        () => this.$refs.builder$?.preview$,
        (preview$) => {
          // this is the final loaded position
        },
        { once: true }
      );
    });

BTW: when preview$ is loaded this.$refs.builder$.preview$.form$.schema === this.$refs.builder$.builder.schema !== el$.from$.schema

Any suggestions what could go wrong on a custom element?
el$ is const el$ = useElement(props, context)