Black spots on Jin?

Hi, the jin on my Chinese juniper has developed black (ish) spots. I have used lime sulphur on it and these spots appeared afterwards. I’m fairly new and inexperienced at bonsai so any help or knowledge is greatly appreciated.

Thanks.

Please upload a picture, it helps a lot.

Hi,

Sorry I didn’t see the add attachments button.
Here you go, the spots are not very large, but wanted to catch it early just in case further spread can be prevented.

Thanks.

I would not be sleapless over that.

Thanks for your help, even though it’s not the best photo to go off of. I didn’t think it was much, but I’m pretty inexperienced and wanted to be sure.
Thanks.

plants and the wood are natural products. THey change shape, color etc.