Any help?

So I upgraded from a watch 4 to the 5pro. & it doesn't seem to wanna read my heart rate, & really doesn't wanna track my sleep. I never had these issues with my 4. Is this a common problem with the 5 pro? Both my arms are covered in ink. I turned off the wrist detection. It kinda helped. I saw someone on YouTube put a little epoxy sticker over the sensor to make it work. Any help would be greatly appreciated.

So I upgraded from a watch 4 to the 5pro. & it doesn't seem to wanna read my heart rate, & really doesn't wanna track my sleep. I never had these issues with my 4. Is this a common problem with the 5 pro? Both my arms are covered in ink. I turned off the wrist detection. It kinda helped. I saw someone on YouTube put a little epoxy sticker over the sensor to make it work. Any help would be greatly appreciated.