Not just signalling that has been an issue recently
The line west of Paisley to Gourock was closed due to issues with the OHLE, ironically the section along the sea front at Saltcoats was still open and in use
The signalling south of Paisley (to Ayr) should be relatively reliable
Perhaps the issues stem from the upgrades taking place between Glasgow, Shields, and Paisley
Previously the route was closed and remained closed for longer than intended, resulting in it making the TV news