I recommend you all subscribe to their Twitter account. They have posted yesterday literally: "
Sorry if we've been slow with email replies lately, we're working overtime on finishing the Match All feature. Thx for your patience."
I also have some parsing issues with iStock, and they responded to me that they're aware of the problem and will address it and other bugs in upcoming new build, including the "Match all" feature". So be just a little bit more patient. Your income from microstocks won't disappear because of this temporary glitches