I attempted to clean my lens with alcohol and a cotton swab with my phone camera to see what I was doing when prompted. It was quite dirty. Once I did I started a burn of a tile, and about half way through, it stopped actually burning - the motion happened but it stopped actually making marks. I took it out and cleaned it again, then noticed it looked wrong - I took the lens out with tape as suggested and this is how it looks. I think the lens might have misaligned during my cleaning and now is damaged by the laser. Could anyone confirm this suspicion?