I hate looking at these types of things on my phone, but the end of the through bolt looks like it has been kissing something??
For me when you showed the video you kept changing
Positions to quickly.
I agree with those asking you to check your joints. You don't have to remove the whole shaft at this point even though it would help if you did. You can use a heat gun or even a oven to bring up temps if needed, but I think you may find your problem without needing to heat it up.