XC200 cleats don't release reliably from the pedal

Hi,

I have early production XC200 pedals and I find that the SH51 cleats can get stuck when trying to release. I have set the tension to light but sometimes the twist heel left or right, the cleat will not release.  This has become very disconcerting in some very technical gravel riding causing fortunately low speed falls with no injury, but nevertheless very unsatisfactory experience.

Has anyone had this issue.  Is this a mechanical assembly issue of the pedal - I changed from the garmin supplied cleats to Shimano branded cleats and it made some improvement, but I am still not happy with their release.  I have owned the pedals a few years. Was this a known manufacturing defect in the original pedals.