I am having the same issue...
This is happening since some time now. Running actually the latest versions of GCC 7.15 or Webinterface 1.0.7 but no changes.
I am actually located in FRANCE and Profilux is set to UTC+2 and charts are not updated since 6 hours ( see attachments) even when selecting the chart by hour.
Attachment 11002
Attachment 11001