Enginetech bearings and rings

Thanks that's good news. Ok I have a rather odd question. I got my bearings out and cleaned them up to inspect them and I noticed something weird. I was very careful to keep everything orderly and in its place so I know I did not mix anything up. The first bearing has the groove in the center on both sides and a oil hole in both sides even tho there is no oil access in the main cap. 2 and 4 have a smooth top 1 3 5 have the grooves. But one is the only one that has a oil hole on the top. All of them have the oil hole on the block side of course. Is this normal? Or did someone from the factory mess up lol. Here is a picture. And also the #1 cap bearing is narrower than the block side one?? Here is a pic.
I checked all the markings and the bearing from #1 says STD. The other 4 do not but they all have numbers that I dont know what they mean I'm assuming it's a date code cause they all say 4-86

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