Failed to load viewstate. Happening only occasionally. Tough to recreate

Question

Details of Error are given below. This error happens only occasionally / rarely / sometimes and there aren\'t any steps to reproduce it.

How can I know which Control

Answer 1

You can probably reproduce this by stopping the page before it is fully loaded, and then submitting a postback. If the server wasn't able to get the complete viewstate from the server, then it won't be able to re-create it on postback, hence the crash.