Hello @umi2025, Good Day!
I would like to ask, what is the data that changed? And how did you change this data?
Did the problem occur only after changing the data of the tags, or did it happen as well with unchanged tags?
This issue could very likely be related to the antenna design, given the inconsistency of the data being read, RF communication errors could be present. Please refer to the NTAG Antenna Design Guide available at the product page under "Documentation" and make sure the guidelines described are followed.
If the tags were manufactured by a third party, please redirect this inquiry to the correspondent entity.
My best regards,
Daniel
