Hi and welcome.
Did your bg rise or fall at the 2hr mark?
I think the most likely explanation in this instance, is meter variance.
Our home meters are not very accurate (it is an inevitable consequence of manufacturing a small, portable, rapid meter). The accepted variance is up to 15% from your actual measurement.
So both your tests are roughly similar, applying that 15% inaccuracy.
I could do the maths to work it all out precisely, but there doesn't seem much point, because we are looking at inaccuracies.
A few of us get blood glucose readings that are lower 2-5 hours after food than they were before the food, but it tends to only happen when we eat more carbs than you did, and it usually takes longer than one hour. As
@CatLadyNZ says, it is called reactive hypoglycaemia. But i think you would have to see a very consistent pattern, with much bigger highs and lows, before that was a likelihood.
If there is a pattern like that, you will spot it very easily with regular testing, but the general rule is not to worry about individual readings, and watch for trends and patterns.
Hope that helps.