Channels missing after repoll

Hello,

This morning I did a repoll on the VCM scanner in the hope to get more channels available. After the repoll a few new ones came up but many are missing now that where working properly before. Mostly noticed for the gearbox TCC from ZF8HP. Re-installing SW etc did not help and also some items in VCM scanner are now greyed out.
Is there a way to force all possible channels back?

thanks in advance