TscSSLServer broadcast to clients

TscSSLServer broadcast to clients

I have a TscSSLServer with connected TscSSLClients.

The Clients can send a message to the Server.

And the Server can send a message to the Client in its AfterSessionConnect event.

But if I try to send a message to the connected Clients via a forms button event the message is corrupted.

What is the correct way for the Server to send a message outside of the AfterSessionConnect event?