RxLoader does not initiate spinner

[ValeriusGC]

Hi!
I realized RxLoader in that way

child: RxLoader<List<Some>>(
 key: Key('___aaa___'),
 spinnerKey: Key('___bbb___'),
 radius: 25.0,
 commandResults: _mng.getList.results,
 dataBuilder: (ctx, data) {
   // some code
 },
 placeHolderBuilder: (context) {
   // some code
 },
 errorBuilder: (context, ex) {
 // some code
 })

but no any spinner at all, only placeHolderBuilder, and placeHolderBuilder.
Of course, subscribing on isExecuting works, but how about RxLoader as handy aggregate?

[ValeriusGC]

My fault. Used it incorrect.