Where I live and work it is customary to give an employee a written testimony upon leaving the company (The literal translation for the document "Arbeitszeugnis" is employer's reference).
My current employer was created as a spin-off from a well known German organization where I worked previously.
Due to the very informal hiring process and ongoing involvement, I received said written testimony about five years late.
The date (mid-2017) on the document is five years after I transferred from the previous employer (which happened around 2012) and it is signed by person X. In the meantime, person X has also transferred to my current employer and - as I am about to quit soon - would again be the person to sign the Testimonial.
I am worried that this (Same person writing two testimonials at different companies plus an odd delay) might look like a red flag in a future hiring process history.
What is the community stance on this?