Cloud problems lr cc

'something happen to my photos , I did a shoot on the 29th January ,uploaded the raw file from my iPad to cloud  via Lightroom cc and then edited a few , I went back to finish the editing off yesterday but the was only 74 there out of 526 ..... creative cloud app in my iPad Pro says 526 images in folder call 'middle parish' but only 74 are in lr cc , I tried to recover the photos them from the cloud but it's seems most of photos half uploaded to the cloud when I press download original photo the app just closes down , its must a glitch if I deleted my mistake they wouldn't be still some data in raw file they would delete completely and if didn't upload initially I wouldn't be able to edit some photos missing from Lightroom on 29th , strange and pretty sure I did not delete them