I've been trying to submit a bug with photo albums thumbnails disappearing while you upload from your iphone (seems to be some kind of memory problem or redraw

I've been trying to submit a bug with photo albums thumbnails disappearing while you upload from your iphone (seems to be some kind of memory problem or redraw not updating) and some suggestions for the UI/UX (if you choose the wrong image to upload on your phone it takes 5 taps to choose another image rather than 2 taps) but I can't find a page anywhere to send in a bug report or ask for a UI change.