Temperament of the paint starts to react to the change in temperature. The cure process in this paints have to have temperature over 72 degree or it leaves bashes, wet spot or off shades.
It tend to happen to me, living in a very humid summer state the paint job works great during the 87 to 95 degree weather. As soon as sunset when temperature climbs down quick to 82 and down to 74 or 70 as fall approaches the chemical in the paint starts to react differently and leaves this bashes sometimes doesn't cure at all and other deforms leaving off shade and thin spots or pull and thick spots or dips.
I figured out a quick fix when wanting to get the last bit of painting.
After every paint layer run it to an end close area like room corner or make one using cardboard box and leave it under a small room heat fan. I use low fan speed and high temperature close to summer 95 degree. This reactivates the curing process and the paint begins to reform back again. I tend to move it around after every 30 to 45 minute to get to every corner.