Glitch or a usally thing.

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Mr_Spocky
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NimzoRoy

The first problem is I don't know what you're talking about, and I doubt if anyone else will. Try reposting this with more details and click on the "ABC" icon before submitting, although they may be of limited help if english is not your primary language.

Where are you posting a sequence of moves? In the analysis bd here or in a chess program or DB? What program are you using? Offhand it sounds like you're using a program not intended for chess moves