YouTube Question Watching hour decrease

[LeisureDIY]

Just checked the analytics and found out 15th July suddenly become 0 views and 0 hours, but I'm sure it is few hundred views and few hours before, is that normal the information just gone? Is that a bug?
This is my first time having this issue, just curious

 

[Shaniece Ashley]

the same thing happen to me .

 

[Ci Arts]

Same happen to me, but i think its already fixed

 

[LeisureDIY]

Same happen to me, but i think its already fixed

Mine not fixed yet (PC version) , but the analytic in smartphone version is normal

 

[VenGame]

OMl the same thing happened to me but calm down because