Wow...really? The OP asked if there were any common issues. Anyone who has paid any attention to this optic since it's release knows it has common issues.
For some bizarre reason you're acting like there aren't hundreds of posts over the last couple years saying the same thing I said. I don't think the NX8 is a bad scope, lots of people like it. But for some of its shortcomings and price I think there are better options.
I know you aren't so naive as to think I'm only one who thinks or says this. I know you've been on this forum for more than a minute. I found these with a simple search and ten minutes of copy and paste. 10 pages came up on my search, this is all from the first 3 pages. I could put up 50 of these if I wanted to invest the time.
First paragraph from Glassaholics very extensive review of the NX8. Bill pretty much writes the most extensive and non bias optical reviews that exist here on the Hide.
"
""Back in 2019 I did a review of the newly released Nightforce NX8 2.5-20x50 scope and it was not a very favorable review as the scope suffered from some of the worst edge distortion I have seen in a high end scope. Being such a short design with an 8x erector I knew it would likely be finicky and it did not disappoint with finicky eyebox, parallax and DOF. In hindsight, I should have sent the scope back to NF with my findings and given their CS an opportunity to make things right."""
This is him again from 2021.
"""I do not have experience with the NX8 4-32, but I do with the NX8 2.5-20 which is the WORST high end optic I've ever looked through, eyebox and DOF on that scope along with gross edge distortion had me selling it immediately after my review, I honestly do not know what NF was thinking when they released that scope, and it baffles me when I see fanboys saying "this is the best scope I've ever owned" which makes me wonder what on earth did they own previously. Maybe at $1k the NX8 would be appealing but at $2k there are much better options out there. That being said the NX8 4-32 seems to get better feedback and I've thought of grabbing one at some point but my experience with the 2.5-20 left such a bad taste in my mouth I have not had the itch to do so yet."""
In defense of the NX8, Bill does think they've made good improvements to the glass since his initial review. This is a recent comment from him.
Post in thread 'Best Budget (under $2k) non Chinese made 34mm FFP 5-25x range scopes?'
https://www.snipershide.com/shootin...-ffp-5-25x-range-scopes.7204006/post-11364382
None of these comments below are from me.
Post in thread 'Nightforce scope upgrade - Worth it???'
https://www.snipershide.com/shooting/threads/nightforce-scope-upgrade-worth-it.7105928/post-9940702
Post in thread 'Duplicate, delete.'
https://www.snipershide.com/shooting/threads/duplicate-delete.7148913/post-10574983
Post in thread 'NF 5-25 to smaller scope?'
https://www.snipershide.com/shooting/threads/nf-5-25-to-smaller-scope.7106091/post-10061074
Post in thread 'Nightforce scope upgrade - Worth it???'
https://www.snipershide.com/shooting/threads/nightforce-scope-upgrade-worth-it.7105928/post-9939450
Post in thread 'Nightforce scope upgrade - Worth it???'
https://www.snipershide.com/shooting/threads/nightforce-scope-upgrade-worth-it.7105928/post-9939811
Post in thread 'Nightforce scope upgrade - Worth it???'
https://www.snipershide.com/shooting/threads/nightforce-scope-upgrade-worth-it.7105928/post-9942163
Post in thread 'Optic Help / 308 AR-10 / Intro Precision-Hunting'
https://www.snipershide.com/shootin...-intro-precision-hunting.7104279/post-9916005
Post in thread 'New March-FX 4.5-28X52 HM WA'
https://www.snipershide.com/shooting/threads/new-march-fx-4-5-28x52-hm-wa.7032201/post-9394085
Post in thread 'New March-FX 4.5-28X52 HM WA'
https://www.snipershide.com/shooting/threads/new-march-fx-4-5-28x52-hm-wa.7032201/post-9393642
Post in thread 'Steiner T6xi'
https://www.snipershide.com/shooting/threads/steiner-t6xi.7126108/post-11377608
No scope gets universal love on the Hide. Except maybe the ZCO. But reports of the NX8 being a finicky optic have been rampant since its release. A handful of optics out of Japan or the US don't suffer from those issues, and can be found for less money. Plenty of good alternatives offered in the links above from other posters.