Weird lines appear after doing Filter-Other-Minimum

Thank you @begm98597102 for sharing the link and info.  We tested again here on both Mac and Win and do not see this issue following the steps in the first video link you sent.

At this point our suggestion would be to do a clean install of Ps and make sure your preferences are also replaced. There is something going on with your system that we are not able to reproduce here.

One thing to try before that:

Close Photoshop
Restart the computer
Use the Adobe Creative Cloud App to uninstall Photoshop
Restart the computer
Install Photoshop via the Creative Cloud App without launching any other programs.
Restart the computer
LaunchPhotoshop
Wait 5 minutes... does the error persist?

Restore your preferences using this manual method:  

https://helpx.adobe.com/photoshop/using/preferences.html#Manually  

Does it work correctly? 

If that doesn't solve it, you can quit Photoshop and put the Settings folder back. 

Thank you for your patience,

Another note: 

>Filter - Other - Minimum. Radius = 0.8. Preserve Roundness

The lines will show stronger when Radius is higher.

Hi Cory,

no I don't have another machine to test on.

https://www.youtube.com/watch?v=XvDnEKncyPA at 9:24

https://www.youtube.com/watch?v=ewypi5UOMWw

https://www.dpreview.com/forums/thread/4406980#forum-post-62848838

thank you,

azman

Thank you for the file @begm98597102. testing here on both Mac and Win do not show any lines/issues.  

Do you have another machine to do the same steps on to see if the issue persists, that would help us tell if it is machine based vs software. Could you share the YouTube video you are using as your tutuorial so we can test the same steps they show to see if we are missing something in the workflow?

Thank you,

Done sharing to shubert@adobe.com

https://www.dropbox.com/s/fnl2mi98w2zf4ly/DSC_7311.NEF?dl=0

Just follow the steps I posted in this thread.

Use shubert@adobe.com.... thank you.

Hi, I need your email id to share via Dropbox.

Thank you @begm98597102, please share a link to a RAW file that the team can test on.

Thank you,

Can you post a link to a raw raw file. It is possible that you are seeing some sensor noise that is being emphasised through your process.

Dave

Hi Cory,

yes happened to all my milky way shots that I try to precess this way (some show strong lines, some more subtle lines, but forming the same pattern).  I can send you my raw files if you need to examine it.

Going back to my first post up,  I see the lines become stronger as I set higher value for Radius.

>Select - Color range. Highlights, Fuzziness = 60, range = 100

>Select - Modify - Expand. Expand by =3

>Select - Modify - Feather. Feather radius = 1.5

>Filter - Other - Minimum. Radius = 0.8. Preserve Roundness