No PPPOE Log after recreating PPPOE device

[QuisaZaderak]

Hi,

today i had a provider change back to Telekom. With that the VLAN ID changed from 132 to 7. So i needed to delete the PPPOE device due to recreate/change of the VLAN device.
I created a new VLAN 7 (named VLAN01 now) interface and recreated PPPOE and assigned to WAN_DSL.
PPPOE is up and running. But the PPPOE Log file kept the old content from old PPPOE device with VLAN 132 interface. So i selected "Clear log". The log disappeared.

But now the Point-to-Point -> Log File section keeps being empty. (also after 2 reboots). No more recreation of log file.

How can i fix / recreate this pppoe log file?

[QuisaZaderak]

Problem still persists even after four days and two reboots.