ruTorrent v3.9 - Search now only on YTS

Greetings,
for a few days now searching "all" (sites) via ruTorrent v3.9 web UI hasn't been working, only showing few results of single sites in a seemingly random manner. I'm not aware of having changed any settings.
Can anybody help me to get back to beeing able to search all the sites at once please?
Thank you in advance