2 x Eufy wireless doorbell, both up to date, two different firmware

I have two T8210’s, one shows firmware version, the other says Both connected to the same HomeBase, both have been restarted, both say up to date. What’s going on. Why don’t they have the same firmware versions?

This is known issue that has been answered dozens of times. With the global chip shortage, the same models may have different firmware to account for different hardware being used.