Hi again my friend, I’m sorry for the missing screenshots, I rushed to post and unfortunately I’m not allowed to edit post nor to make additional post before my previous one gets verifiied. About my issue with the retargeting manager I understand what you said and it’s oversight of mine, it’s excactly what you explain in the very begining of the tutorial, I didn’t understand it straight away, also about the deviation between the 1st and last frame of animation I’m not much worried cause I’ll be able to fix it during the process.
Now about the issue I have, I post the screenshot, it happens right as soon as I click the UE4 button under “follow what” on the Rig Actions tab. If then I move the timeline the animation get broken. I guess it’s not a common issue cause no other users have reported this but any idea what may have caused it?
Finally, about the rigify version, I’m using the one that is coming with Blender 2,82 version, I guessed it was the most recent one. Do you suggest me to use another version and if so, could you provide me some link to download because with a quick google search I wasn’t able to find any other versions of rigify to download. Thank you again my friend for the support and take care! 
