I can give you several reasons to be skeptical about this.
1. Here is the UCAS page where you enter details for an individual qualification. Can you identify to the part where they "ask if u have passed or failed the practical endorsement"?

2. Many (perhaps all) students will not have completed all the required practicals at the point they complete their UCAS application. That being the case, if they
did ask "if u have passed or failed the practical endorsement" most students couldn't answer the question anyway.
3. It's not clear who you mean by "they" when you say "apparently if u select fail they automatically reject ur university choices", but I think you're suggesting that UCAS do that. UCAS don't make offer decisions. Individual universities do.
4. Your original question (which I note that you have now edited) said, "However i have also heard
some courses at uni don’t require a pass in the practical endorsement. If so can u give me some examples and if it’s not true..." - which would make absolutely no sense if "they automatically reject ur university choices".
Now it may well be that Derby (who make no mention of the term "practical endorsement" anywhere on their web site)
do actually require it. My suggestion is that rather than relying on "However i have also heard" and "apparently",
you actually ask them.
In terms of resitting the practical endorsement on it's own, I'm fairly sure you can't. You certain can't with Edexcel, who cover that
here:
"
Can students resit the Practical Endorsement?Yes: students can resit the Practical Endorsement. However, the Endorsement is only available as part of the whole A level, not as a separate qualification. Therefore,
a resitting student must take all components of the A level as part of the resit i.e. must sit the written units again."
I can't find anything definitive on the AQA site, but imagine that they would be the same as Edexcel in this regard.
Finally, I would point out that you've only missed your school's deadline for the practical endorsement. They can, if they wish, still help you gain the endorsement. As AQA say
here:
"To fulfil the requirements of the endorsement, every student must carry out a minimum of 12 practicals.
A student who misses one of the required practicals must carry out another practical to be able to gain the endorsement.In most cases, this can be any experiment of A-level standard. However, students must have experienced use of each of the apparatus and techniques. In some cases, a particular apparatus and technique is only covered in one required practical activity.
If a student misses that activity, the teacher will need to provide an opportunity for the student to carry out a practical that includes that activity. The list below shows the apparatus and techniques that are covered by one activity only, as well as alternatives to the required practical."