Yes I have this same issue with WCG, just contacted them about it. I'll let you know what their response is. My only thought is that they want to pay less frequently...
You haven't been reading the thread lately have you? It's been mentioned several times what the issue is.
It's all related to the European Union's GDPR ("Global Data Protection Regulation") that came into recently. As a result of this, the WCG is unable to release the API data to organisations that have not signed an agreement to operate within the bounds of the GDPR etc.
Unfortunately, the WCG were VERY slow... And didn't get their agreement set up (ie. Approved by lawyers etc) prior to the GDPR coming into effect... So there was literally no way for ANY organisation to actually sign the agreement!
The result of this is that, currently, the Byteball WCG team have no way to access the API to determine how much work has been completed by individual team members and therefore, how much they need to pay out.
Once WCG get their shit together... And allow the Byteball WCG team to sign an agreement... The Byteball team will once again be able to access the data (no doubt this will be dependent on the the individual team members "opting-in"). Once they have the data, they will be able to do the calculations and distribute bytes.
It's not a matter of Team Byteball not wanting to pay (or pay less often)... It's simply that they cannot access the data to work out how much to pay because WCG messed up.
TLDR; WCG messed up => No API data available for Team Byteball => no payments for participants.