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Issue Lets encrypt and Positive SSL conflict

Clericer

New Pleskian
Server operating system version
Ubuntu 18.04.2 LTS
Plesk version and microupdate number
Plesk Obsidian v18.0.35
Hey guys i run into a certificate issue and i can't solve it.
I bought 5 Positive SSL certificates inside of Plesk and enabled and assigned them.
I deleted all certificates except the 5 new once.

1.
But on one domain the default hostname Domain, the certificate is completely not assigned, its sending always the old expired Let's encrypt certificate.

2.
On one subdomain, Plesk is using randomly certificates the old (non existing Let's encrypt certificate) and the Positive SSL, therefore i get sometimes certificate warnings on my website and sometimes not.
System reboot and certificate reassignment not helping.

I use apache2 without Nginx no proxy is used.

Has anybody any idea where to begin to investigate?

Here is the Certificate for the Domain

Screenshot 2022-07-12 090110.jpg

Here it is assigned.

Screenshot 2022-07-12 090313.jpg

And here you can see the the Browser is still using the wrong one


Screenshot 2022-07-12 090356.jpg


Thank you for your support guys.
 
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