Default can't upload attachments like pictures

Can someone explain to me what I'm doing wrong when trying to upload a screen shot I click on attachments my phone is already plugged into my computer but when I click choose file nothing happens and if I try to upload from Dropbox or drive or mega I get it saying sorry not a valid image type when it's a jpg and only 156 kbs can't figure it out and my phone is the lg g2 vs980 computer running Windows 7 and I'm using boat browser on my phone to go to xda
Thanks in advance for any help
Of and one other thing when I go to click submit new thread or save changes I always have to do like 3 or 4 times before it will load it otherwise it just redraws and puts my cursor in a random spot in the message and I sometimes I can't search within a thread I'll click on the search block it'll redraw I'll click it again it'll redraw and disappear weird
I forgot more than most people will ever know.
Rocking Cloudy's G3 ROM with simple kernel on my G2 and loving it
Clean ROM and elementalx kernel on nexus 7
Lg g3 running stock rooted with xposed
IF YOU LIKE MY WORK OR I'VE HELPED YOU PLEASE HIT THANKS