Vector Flares on Bright Stars

[tony_cameraguru]

I seem to be getting these vector flares on some of the brighter stars, any ideas please? Explore Scientific 80ED FCD; 1.25 L'Extreme filter; Canon 250D modded; 1.25 filter wheel; OVL Field Flattener. I have tried with and without a filter, also with and without the filter wheel. I have just had the scope collimated as well by an astronomy store in the UK. I include two images, a single sub and a 62 sub stacked and initial stretch.

Thanks

Tony