Why this phone’s photos are not available

See this user tip.

Writing an effective Apple Support Communities question

Going to need more information:

• Are you using iCloud Photos?
• Are there any errors?
• Do new photos taken with Camera work?
• Has the phone been recently restored?

My videos and pictures show in phones pictures, but don’t play if it’s a video or live picture, says video unavailable at this time try again later… but it never works. Only some videos and or photos does this. Why ?