Hi mummies, Im using spectra flange with autumnz bottles and they are working fine except today when it is impossible to screw them tight. I've touched both the flange & bottle to check if it is due to greasiness, but there isnt. I've also swop the flange & bottles trying to find out which part has gone wrong but its the same, both loose. What could be the problem? Thank you!

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Not sure what went wrong with yours. But my friend mentioned that her autumnz bottle didn't fit well with her sprectra pump, so she bought an adapter. Though I doubt yours is the same issue since yours could fit well initially. Hope other mummies could shed some light on this..