Guild Wars 2

After the patch on Bash the dragon, the skill drop from 1200 range to 900.

It is not documented on the patch notes, therefore it must be a bug.

The range of Blink was always 900. You can use the “Far-Reaching Manipulations” trait to increase the range to 1200.

http://wiki.guildwars2.com/wiki/Blink
http://wiki.guildwars2.com/wiki/Far-Reaching_Manipulations

You are correct, I changed my build that is why it drop to 900