WSPR beacon with 0,05 W

Since a couple of days I'm located at the island of Amrum and am testing my little beacon. The power is 0.05W. At the moment I'm having problems with the GPS module connected to the beacon as it only transmits 4 digits of the locator - but I know, it's possible to transmit 6 digits. Today (06/07) I transmitted the wrong power and again only JO44 as locator - even though I updated the code of the beacon.

Will continue testing...