There is a chin problem with Wilder.
2 short clips below, only about 1 minute each, worth a look.

Wilder turned pro Nov 2008 at 23 years old.
Here he is 9 months earlier, Feb 2008, as a 22 year old Amateur getting knocked around and down by Evgenyi Romanov (born in 1985 same as Wilder.)

https://www.youtube.com/watch?v=rpWqvX3_PW4



David Haye sparring Wilder in 2013. Haye was rocking him.

https://www.youtube.com/watch?v=j7tzdZvOWkY

Quite easy to see the liability and susceptibility in this fighter.
Bur hey, Wladimir had some chin issues until Stewart joined him in 2004 and gradually worked out the kinks in his style, developed him, helped him learn to protect the vulnerable chin.