You started from
From this I guessed that you wanted to do a new install from FairphoneOS. Now I think you are asking a different question ?? Do you have a Murena supplied FP5 ??
I cannot explain why this build was withdrawn – is that the main question?
As a post in build-feedback the observation will be noted.
can I install it without worries?
If the build which appears later is different you may worry, idk.