Hi there, you're 2nd link looks good to me. Are you setting "sd", "st", and "he" as Embedded Data at the top of the survey flow for questionnaire B?

https://community.qualtrics.com/XMcommunity/discussion/comment/46666#Comment_46666Yes I do, but it has no effect.

Hmm, I ran through the process on my end and it's bringing the data over. Are your surveys set up like the below?

Yup... It doesn't work for me...
Maybe it's because I'm doing a preview?
Questionnaire A:
The scores are calculated as they should on questionnaire A and presented without a problem
Redirect to B:
Questionnaire B:
I don't even get a zero... It's like the data isn't been transferring between the two questionnaires.
https://community.qualtrics.com/XMcommunity/discussion/comment/46669#Comment_46669

It looks like there might be a formatting issue with your Redirect URL where your brackets were replaced with "%7B" and "%7D". This would prevent the transfer of the data between surveys.
Try updating the URL so that it uses "{" and "}"

https://community.qualtrics.com/XMcommunity/discussion/comment/46673#Comment_46673It wasn't the problem, the address was correct but for some reason it's being pasted funny: https://huji.az1.qualtrics.com/jfe/form/SV_bBeEZXpQsngj6zc?sd=${e://Field/sd}&st=${e://Field/st}&he=${e://Field/he}

Hmm, if the scores are being saved to Embedded Data fields, the redirect URL includes those Embedded Data fields, and your 2nd survey sets those Embedded Data fields at the top of its Survey Flow, the data should be transferring. 
Your Questionnaire B picture looks like the st, sd, and he Embedded Data fields are being set along with other fields. Is this element at the very top of the Survey Flow? If not, try putting the st, sd, and he in a separate Embedded Data element and putting it at the very top of the Survey Flow.
If that doesn't work, would it be possible to post QSFs of your surveys? Might also be worth checking it out with Qualtrics support.

Yes to all.
I've deleted everything and rewrote just the three factors.
Everything is on top.
Nothing is working.
What are QSFs?
I've involved the support, but to no avail so far...

QSFs are Survey files only readable by Qualtrics. They retain all of your survey formatting and settings but no response data. They let someone import your survey into their account and investigate any settings that may be causing an issue.
https://www.qualtrics.com/support/survey-platform/survey-module/survey-tools/import-and-export-surveys/#ExportingaSurveyasaQSF
Also, be sure that you are publishing any changes to the surveys so that they are reflected in the survey experience.

https://community.qualtrics.com/XMcommunity/discussion/comment/46686#Comment_46686Thanks, I attached the files.
Of course,
Feedback.qsfValues_needs_and_WB_-_Copy.qsf I kept publishing everything.
Thank you very much for being so dedicated to helping me!
It might be problematic to understand them because most parts are in Hebrew, but the data itself and the names of scores are in English.

Thank you for providing the QSFs! I checked them out and I think I see what is happening. The st, sd, and he are being set as Embedded Data at the top of Questionnaire A, but the values being used in those calculations haven't been collected yet. Try putting the Embedded Data element right before the redirect happens, like in the below:

Thanks, I've also thought about it and tried to out the embedded data component in different places in the survey flow, but while the values for st, sd and he were calculated correctly regardless of the spot at questionnaire A, the data wasn't transferred to questionnaire B.
I've also tried to open another questionnaire and it didn't work...

https://community.qualtrics.com/XMcommunity/discussion/comment/46702#Comment_46702Hey there! Looks like support was able to confirm that Tom_1842's solution is correct. Once the first survey's element is nested under the "Demographics" block, the system is able to pull the embedded data into the second survey.