Sending analytics events through the event service plugin keeps failing

MIP
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debug data
debug data720×473 92.7 KB
debug code
debug code720×405 70.9 KB
Error Log
Error Log720×214 77.2 KB
Sending analysis events through the event service plug-in has been failing, and the MIP log shows ArgumentException. The content of the Message message is as shown in the figure. I want to know which parameter is wrong and will cause the ArgumentException. In addition, there is no such problem when the same code sends the same Message in the Standalone Service before.

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In order to verify if an unmodified sample work, can you please try to test with an unmodified sample called Analytics Event Trigger via library?

https://doc.developer.milestonesys.com/html/index.html?base=samples/componentsamples/analyticseventtriggervialibrary/readme.html&tree=tree_2.html

Also, I noticed that you wrote it was working “before”, do you remember if you changed anything on the machine? If you added some changes, what did you do?