I have these odd brown spots on my bush bean leaves (see image - they are at the tip of the leaf). These leaves are about 4 weeks old and are otherwise thriving very well. There is no outer ring around the brown spots, and they do not feel dry i in the areas where the spots are. I had them in row covers from when they were sown until yesterday because temperatures are climbing into the mid 80's.
We live in Atlanta, GA and it's been very wet and humid the past week, but they are in raised beds that drain well. All other plants in the bed are doing fine - no pests or eggs or pest damage that I have been able to see. Only a few of the beans have these spots. One of the plants that has them is growing in an entirely different area of the garden (overflow - more germinated than I thought).
Please see image - thank you so much!