It looks like the paint on the pipe is causing your problems. I'd recommend shutting off the water, removing the shark bite connector, and stripping the paint for a couple inches on either side. The hardware store will have chemicals to help strip the paint so you don't have to do it all manually.
Here is a video of how to use emery cloth to clean a copper pipe. The video is a bit long for the topic but covers it well: https://www.youtube.com/watch?v=Q4LvzHt4m3M
When you reinsert it, SharkBite recommends 15/16" insertion depth for 1/2" pipe. Typically you should measure that distance from the end of the pipe and mark it with a permanent marker so you have a sight line for reference when pushing the fitting on.
Videos
It looks like the paint on the pipe is causing your problems. I'd recommend shutting off the water, removing the shark bite connector, and stripping the paint for a couple inches on either side. The hardware store will have chemicals to help strip the paint so you don't have to do it all manually.
Here is a video of how to use emery cloth to clean a copper pipe. The video is a bit long for the topic but covers it well: https://www.youtube.com/watch?v=Q4LvzHt4m3M
When you reinsert it, SharkBite recommends 15/16" insertion depth for 1/2" pipe. Typically you should measure that distance from the end of the pipe and mark it with a permanent marker so you have a sight line for reference when pushing the fitting on.
You can also use any number of abrasive or sanding products but that paint has got to go. The wall of the pipe has to be absolutely free of debris.
Does anyone have experience using SharkBites to connect to CPVC?
I had three faucets left in my house that still were using rigid plastic supply lines, I have had it on my to-do list to replace them with braided steel lines and finally got around to it today. After turning off the shut off valves at the faucets, I noticed several of them were leaking if it was in the fully-shut position. I went ahead and decided to replace the six shut-off valves as well (I've never done this before, but it looked easy enough). Was browsing through Lowe's and they had a ton of SharkBite products and a very quick look online seemed to be good reviews, the employee who was in the aisle seemed to really like them as well.
Got home, installed the 6 new shut off valves and the new water lines and did a little bit of research (after the fact, stupidly) and it seems like a lot of plumbers dislike them and say they're prone to failure? I hope I didn't just make a giant mistake trying to prevent a flood and instead ended up causing one in the future. They installed easy enough and I do not see any leaks right now. I only have a single story house so a slow leak wouldn't bother me (I'll just check them periodically especially this first week), I just want to make sure one of these things aren't going to blow off while I'm not home and flood my house...
Appreciate any help. Super worried that I made a mistake.