I have a Vaporeon that I powered up last week and after I powered it up, it says it received 39 CP. At first it gives the Vaporeon the 39 CP, then it immediately takes away 20. It doesn't show the CP being taken away, it just changes real fast after its powered and I'm out the CP, star dust and candies. It currently needs 4500 stardust, relative to the 6000 it would need if it was at the trainer cap, so I know it's not because I hit level 30 (this vape is lower than my 4 others which are at the level cap.)
This has happened to me 3 times and it has only happened to this one Vaporeon. I powered it up twice last week before I noticed this happening, so I didn't touch it until this morning when it happened again.
If it were at the level 30 trainer cap, it would only tell me its getting 20 and not 39, but this gives me 39 and then takes some away. it was around cp 2130 and now its 2191 after it's happened three times. :(
Any advice is appreciated :)