Hi! I had the same problem. I think the bug may be related to me not removing mods before the latest patch, but I don't know this for sure.
First, I removed all my custom content from the Mods folder and put in on my desktop, and I ran a repair on the game before restarting it just in case. As I expected, there were no vampire eyes on toddlers.
So, I began gradually adding back in my CC, but after a little while, it occured to me that some of my CC was likely contributing to the glitch. When I went back into the game, the glitch was back!
I ran one last test, to see if adding just 1 CC item caused the glitch to occur, but to my surprise, the glitch wasn't there, which I can only assume means that certain types of mods are causing the glitch. That... is incredibly frustrating...
It looks like I'm going to be spending quite a bit of time figuring out which mods are doing this, adding and removing mods, checking the game each time to see if anything changes. All we can do is let the developers know what's going on and asking them to look into fixing it. If you want to keep all of your mods, it looks like you're going to have to wait on making toddlers for a little while.