Cause for concern?

So I woke up today to find a couple issues and was wondering if it means anything. Plant number 2 has a couple orange/brown spots on a couple leaves, and the most recently grown leaf is quite a pale light green(this is the same for all of my other plants), I feel like the colour is normal tho as it's still developing.
But plant 3's new leaf has grown really weirdly like its doubled up or something. And it also has a small mark on the tip of an older leaf. Any help would be great. Can post info such as feeding schedule etc in the comments if needs be.

Oh for plant 2, the second picture I think was light burn cause I saw a bit of moisture on it

No big deal. humidity or condensation, a drop of water or feed splattered, touching with something on your hand etc will cause such things. I wouldn't worry unless it gets considerably worse or more wide spread. New growth is always lighter green and not really noticeable until you have some darker developed leafs next to it to compare.

coherent said:

No big deal. humidity or condensation, a drop of water or feed splattered, touching with something on your hand etc will cause such things. I wouldn't worry unless it gets considerably worse or more wide spread. New growth is always lighter green and not really noticeable until you have some darker developed leafs next to it to compare.

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Nice one cheers mate. And that weirdly developed leaf in picture 4 is fine too? Just a weird anomaly I'm guessing, shouldn't detriment it in any way should it