New MV 6.2.1 beta - motion based retention fix for 6.2

[cmr]

Camera firmware versions MV 6.2.1 changelog

Bug fixes

• Resolved an issue affecting cameras using Motion-based Retention on MV6.2, ensuring retention policies are correctly enforced

Notice

• When configured for this version, MV21 & MV71 devices will run MV4.15

[cmr]

Just to note that my MV72X died within about 5 days of applying this firmware.  Could be a coincidence, but it was rock solid before 6.2.1...