description:

the search field in the Arcade tab ( used to search for custom games ) caches its result and affects the search field in the Watch tab ( used to search for heroes in live games ) so that when you try to search for heroes you will get custom games results.

Steps to reproduce:

1- go to the Arcade tab
2- type anything ( or a custom game name )
3- go to the watch tab
4- try to search for a hero ( ie ember spirit )

you will get the same result shown in the arcade search.

screenshots:

https://imgur.com/41FcaUl
https://imgur.com/SKWrVJI
to get rid of the cached search results just restart Dota.