open tiff file i see vertical lines

[teegeepen]

over the last few days when i open a black and white tiff file in illustrator i see vertical lines, how can this be corrected???

[Mike_Gondek]

I am not seeing vertical lines in your screenshot.  Are you saying the file in image >> mode >> bitmap?

 Tyr .PSD format. What happens if you place rather than open?

[pentagramwookie]

I can replicate the bug in Adobe Illustrator 28.5 both on macOS and Windows 11 on PC.

Happening on all file formats in Adobe Illustrator 28.5 using linked or embedded black and white bitmaps, even if they are set to spot or process colors in Illustrator.

It's happening with linked PSDs too, not just linked TIFF files, these lines appear until very zoomed in. The problem persists when embedding the images too. Like in this CD face with spot gold and black inks with intricate line art. The art is all gone when you zoom out to try and see the whole CD face:

Also 'Unembed' is grayed out with black and white bitmaps.

Working in CPU mode is way too slow, not a viable solution, only for a quick preview.

[Ton Frederiks]

It switches between lines and a positive/negative image when I change the prevriew.

It does not happen in 2023, but I get the message that the file was created in a newer version.

[teegeepen]

tom, you are correct yes, it was created in verison 28.5. it is only on my home laptop computer, not my work computer...i tried to uninstall and reinstall illlustrator and that my have fixed the issue...  this only occurs when i open black and white tiff files in illustrator... and it only started occuring this week, never had this issue before...

[Ton Frederiks]

Looks like you are not alone:

https://community.adobe.com/t5/illustrator-discussions/textures-showing-as-vertical-lines/m-p/146359...

[teegeepen]

please look at this screen shot

the top image is when i open the tiff file in illustrator

the 2nd image is when i click on the lines it shows a reverse color image

the 3rd image is the correct tiff file (jaguar)

why am i getting these lines when i open up black and white tiff files in illustrator??

again, this started this week...never had an issue before

[teegeepen]

spoke to adobe support turned off gpu performance and that fixed the problem, i attached the transcript, if you have any thoughts please advise.    This issue occured this week..

[Ton Frederiks]

When I export your file, I get the one with the black backgrounds, even if I see the second one, is that what you want?

[teegeepen]

hi Tom: Ispoke to adobe support last night turned off gpu performance and that fixed the problem.

now i can successfully open up tiff files with no issues

[Ton Frederiks]

But that is a work around.

Turning off a compatible GPU slows down performance.

It is a recently introduced bug (it works fine in 2023) that should be fixed as well as the other bugs with bitmap images that appeared in the 28.5 version.

[Ton Frederiks]

I can replicate it with a simple bitmap created in Illustrator, worked in 2023, stops working with GPU Preview in 2024 28.5

[Ton Frederiks]

Reported at Uservoice(where you can vote):

https://illustrator.uservoice.com/forums/601447-illustrator-desktop-bugs/suggestions/48471191-bitmap...

[teegeepen]

thanks Tom for your help...

[brensons87681831]

Is there any update on this? I am expeirencing this problem as well. 
It does go away when I switch to CPU, but everything lags so badly it is hard to work using the CPU preview.

[Ton Frederiks]

Seems to work again in the current beta/prerelease versions.

[LottieDa903]

I updated Illustrator about 20 minutes ago, and now I'm having this issue with vertical lines show up as well.  

[Ton Frederiks]

Which version? If it is 28.5 it will have this lines bug. Switch to CPU preview Cmd or Ctrl E as a workaround.

[LottieDa903]

Yes, it's 28.5. Thank you. I will try that out!

[Ton Frederiks]

Solved in the update 28.6

[LottieDa903]

Yay! I just updated. Thank you.

[Ton Frederiks]

Good to hear that helped.