It is kind of hard to tell but doesn't look like any fuzzy mold on there to me. That black bubble mid-left looks weird but scobys are pretty weird in general. I would keep an eye on it and proceed as usual. I would say if you finish the batch and examine it you can cut off anything that looks suspect. There are plenty of pictures online of gross infected scobys and this doesn't look like those to me, but I have never had one go weird yet.