Since the update in version 13.5, the information of the blocking session in the alert email is no longer present.
Have you the same error ?
Thank you for your help.
Thank you so much for your question and we did have some tickets regarding this issue but in version 13.5.1.
In this case, I would like to confirm if you are able to see the information using the following statement:
CROSSAPPLY sys.dm_exec_sql_text(dec.sql_handle) sqltext
If you are able to see the blocking session information, but cannot see in Spotlight, please open a ticket with the Spotlight technical support team for further investigation.