filter option in richselect don't work

Hello!
I can’t filter options in RichSelect
https://snippet.webix.com/2i7218ps

With combo don’t work too
https://snippet.webix.com/23tkot92

Hello, @Roman

When you open a suggest (popup with options), filtering in it is always reset. This is a common behavior, in order to widgets are not affected by previous filters (for example, in a combo). To apply your filter, you can set it to onShow suggest.
Here is the snippet:
https://snippet.webix.com/oi5i31ez
Unfortunately, that still does not solve the problem for a combo, because the onShow filter will interrupt the options search.
If the same filtering needs to be applied to all components synchronized with the collection, then the filtering can be applied directly to the collection (after the data has come to it). In this case, related components will receive only the filtering result.
Please, check the snippet here:Code Snippet

thank you!