Automatically generated unique id only even numbers

im using dhis2 2.34 in my local windows machine. i created tracker program with unique id attribute. uniue id automatically generated. code is “SV” + “/” + CURRENT_DATE(yyyy/MM) + “/” + ORG_UNIT_CODE(…) + “/” + SEQUENTIAL(####) but when registering only even numbers display in registering page like 0002, 0004, 0012. how can I correct this???

Are you pregenerating these?
If you are then maybe it is pregenerating it twice once odd and once even number and only the latest is taken into account.
Again this is just a theory.
Let me know.

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