Hi Ashok,
Thanks for contacting Syncfusion support.
We have considered the reported issue “Incorrect total count / remaining count updated in the multiselect component” as bug in our end. The fix will be included in one of the upcoming patch release after Volume 2 main release which is expected to be rolled out on mid of July 2021. You can track the status using the below feedback link.
We appreciate your patience until then.
Regards,
Ponmani M