Collectebiles in Campaign disappear!

So finally the campaign started. Couldn’t do co-op until now. Co-op player always got kicked when starting it.
Anyway started solo. Found all collectebiles until chapter 3. When picked up the first 2 in chapter 3 they showed up in collectebiles. Found the third one, checked again in collectebiles, the first 2 were not there anymore!
Reloaded Checkpoint, but they were not there anymore. And all 3 don’t show up!
Fix it!

Update 9th September:

Checked Collectebiles in stats today. Only all of chapters 1/2 show up. The 3 I collected in chapter 3 are gone. But they don’t show up in the game anymore. So I cannot collect them again.
What is the solution TC?