[PLA Printing Defect]

@danielkrice @gr5
Thank you very much for a reply and clarification on the problem.
In the end, we solved the issue by increase the temperature to 225C. To be more specific,
 

at .15mm layers
Ultimaker Green PLA : 60mm/sec at 210C

Ultimaker Blue PLA : 60mm/sec at 225C

My additional question : If we feed too much filaments, will there be the case of over-extrusion (more filament that it needed)?

[PLA Printing Defect]

Thank you for your reply.

Both materials are 'Ultimaker PLA 2.85'. I believed they are same. 
Let me try to increase the temperature (the room temperature is kind of colder now, compared to the time I print the green one). 

[PLA Printing Defect]

 

I have problem printing a simply cube object using Ultimaker 2+. 

Below show the comparison of two objects; 

• Green --> Successful printed
• Blue   -->  Failed printed (defect); and the printed cube has less strength than normal. I can squeeze (and maybe destroy) it easily with two fingers. 

Both print with the same Ultimaker PLA 2.85 material (just a different color), and the same CURA file. 

 

What wrong with the printing in blue?

I used to face this problem once last year, but after I reprinted, the problem disappears.

This time, even though I tried to print multiple times, the problem still persist.