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It's difficult to say based on the photo. There is a slight flare toward one side but it could just be the way the photo was taken. You need to check final collimation using a star test.
Unclean diffraction spikes are typically misaligned spider vanes and this is visible visually. If collimation is an issue then yes stars will exhibit coma along the axis of the in the misalignment.
I'm visual and perhaps those doing imaging can chime in on how better to narrow it down, perhaps taking a closer look at some images.
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