Contradiction regarding pass mark and statement "passed: yes/no"

Hello community,

I noticed an error in a course regarding the pass mark and would like to find out whether others also have this problem and maybe know of a workaround.

I entered 80% as the pass mark. Consequently, the course is displayed green=passed for 4 out of 5 correctly answered questions, but not everywhere.
In "My Attempts" under "Result" it says "Failed" even though the 80% pass mark was reached. This is very confusing and shouldn't be like that I suppose. The problem applies not only to this course, but to all courses.

Logged in as "Michael Burkar" means that I was registered as a participant at moodle.de when the screenshot was created.

Logged in as Michael Burkart means that I was registered as a trainer at moodle.de when the screenshot was created.

It is probably Moodle version 311 - this is the info I can get from the URL.

Greeting,
Burkart