Remarkable there appears to be some evidence that muons are not behaving the same as electrons. This is from our LHCb experiment at CERN. The results has about 1:1000 chance of being a statistical fluke.
There is a lot more information in the LHCb news article (https://home.cern/news/news/physics/intriguing-new-result-lhcb-experiment-cern) where you can find a linke to the article itself.
This will be especially interesting when new results from g-2 are finally announced