On my laptop, I have created a UK map with 4630 items in. I need to share it with someone. It was displaying all the pins a few minutes ago, but now all the 4630 content items within the list have disappeared and in the list of lists it says 'can't find list' (though the UK list receptacle itself still exists). These 4630 items do still exist, as they display on my phone. However, the phone does not have enough memory to share the list properly. I have tried different browsers, logging back in again etc., but still no content in the list. Please can someone help?