response from meteoblue:
We know the METAR data integration, which we did based on Microsoft’s specifications, which is derived from user feedback. Therefore, we can not really help because Microsoft needs to decide how they display our weather data.
We discussed the different options with them, and they decided to go for the implementation you currently have in the FS. If you want to have the old visuals again or a selection option, you must ask Microsoft directly because they decide what they show in the game. We basically deliver what they want to have implemented.
We assume that the METAR integration is the reason for these bubbles since they are not 100% consistent with the weather model data for different reasons (e.g. MEATAR measurements are sometimes simply wrong, and weather models do not always reflect hyper-local weather patterns). This is then causing problems with the visualizations because they are visualizing two data sources for the same place (airports).