They are 'RFXMeter' and 'RFXMeter counter'

Hi.
The Poll period is 300000 milliseconds. And all the temperature sensors shows the correct graph interval ( five minutes).

Hardware: Raspberry Pi 2
OS:
Domoticz branch: Beta
Version number / build hash: v3.5747
Bug/problem or a question: Question
Occurs:
Problem: 1-wire 24h graph only has 1 value per hour
Steps already tried::
Reproduce:

Hi.
The 24h graph of my 1-Wire (OWFS) counters only has 1 value per hour ...