It does happen occasionally when VM does some “housekeeping” of the TV distribution system. If channels are given new SIDs for whatever reason the box no longer finds them, so deletes them from the list. All you have to do is re-save them under their new SID.
VM 350BB 2xV6 & Landline. Freeview/Freesat HD, ASDA/Tesco PAYG Mobile. Cable customer since 1993
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