[MikeKL]

Be aware of need to set "f" (full/force) option in configurator GUI when adding additional channels to get EPG information added to guide for new channels (Reasonably sure they are never added when update set at default)

(I added a few Radio channels)

I just added a channel with the default value for update and the new channel worked fine in Windows.

Was it channels you had added before and removed or changed the name or id of?

Added BBC Radio 1 & Radio 2 (from radiotimes.com) that had not been included in my WebGrab++.config.xml previously.
See them now in Guide after ensuring was using the "f" option to override the "i" option

"f" overide for all channels within WebGrab++.config.xml, which was overkill, should have set f only for problematic channels that had been added. [by manually editing file] perhaps..