Only being able to store up 5 variables in a bucket..

Only being able to store up 5 variables in a bucket..

Hi, I was wondering if this is a MQTT limitation or if there's a way to change this in tago.io...
Every time I send more than 5 variables, they don't get stored inside of the bucket and the received payload seems to be cut off...
As seen in this pic:

Any idea on how to improve/fix this?