ETC Ion not responding to click with mouse?

Hi there,

I've been using the ETC Ion in our college theatre for many years however after a long time of no use due to the pandemic I've just booted the desk up and loaded a show to find that some features that used to respond to clicks with the mouse don't seem to anymore? For example, I can't click and select Channels/Tombstones or select cues via the mouse either? I can switch tabs just fine with the mouse and save and create new show files and my Magic Sheets work just fine too. 

Has anyone got any idea's why this might be? 

Thanks

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