Wrong RPC call to JS RPC

Created screen
Resource: Latest host group issues
Sort trigger by: host

Open Monitoring->Screen

Change group and time bar period

Result:
<table class="msgerr" cellpadding="0" cellspacing="0"><tr><td class="msg_main msg" id="page_msg"><strong>ERROR: Wrong RPC call to JS RPC!</strong></td></tr></table>

Sometimes problems exist after page refresh in Monitoring->screen page