Dungeons vault doesn't pay / give experience & Guardians are... a little strong?

The first issue, The vault doesn't give experience or money, I've noticed this for the past maybe ~2ish days that it hasn't been giving anything besides jewels, and Im unsure why this is. (all screenshots are labeled with time stamps as well on the top right) The second issue, which makes it almost unplayable to try and play easy or medium (mostly medium as easy is RNG if enough spawn in), Is guardians appear to be able to hit you so long as you are within their firing range, without the need of locking on. I've noticed they can hit you behind / through walls as well and I believe it may be related to their lock on from previously trying to attack you not clearing but this video is the best I got, my armor is full prop IX with roughly some fire, projectile and blast protection at random tiers but doesn't really matter against guardians, its shown roughly in the video and I can collect some more if requested. :) (video can't be uploaded directly so it will be in the thread)