Sometimes wrong Thread Channel ID when reading Threads in CPM EventHandler

Content

I am in front of a really strange problem.

In my Incident Eventhandler I am reading the Thread Array from the Incident and I am logging it to a txt file to check the results.

 

When the result is OK it returns the correct channel ID e.g. 9 or 3

Key: 0 Channel: 9 --- <div>
<div><span>rückmeldung test4</span></div>
</div>

Key: 1 Channel: 9 --- <div>
<div><span>rückmeldung test3</span></div>
</div>

Key: 2 Channel: 3 --- <div>
<div><span>telefon kundeneintrag</span></div>
</div>

Key: 3 Channel: 9 --- <div>
<div><span>rückmeldung 2 per email</span></div>
</div>

Key: 4 Channel: 9 --- <div>