Mismatched device token for FCM

I try to use FCM push with my android app. I succesful get token on device and send it to sendbird server. But push doesn`t work.
I tried FCM push notification tester and get this error: “Couldn’t send push notification. Mismatched device token. Please enter correct device token for the provider.”

// If problem, please fill out the below. If question, please delete.
[SDK Version]
// What version of the SDK are you using?
sdk version: 4.1.3

[Reproduction Steps]
// Please provide reproduction steps and, if possible, code snippets.

// How frequently is this issue occurring?

[Current impact]
// How is this currently impacting your implementation?
I can’t use chats because I need to get push

Hello @Roman_Panev,

Welcome to the Sendbird Community.

This is actually a known issue that was discovered earlier tonight. Currently, the Push Notification testing tool does not work with FCM due to a bug that was introduced. Please note that this does not impact actual pushes and only the testing tool.

As soon as a fix has been released, I’ll comment here.