I've been having a number of issues with stroke weight and behavior lately.
I'm not sure why this is happening but when I take an object with no fill and a 1 point stroke and swap the colors from stroke to fill back to stroke, it changes the stroke from 1 or whatever I set it as and changes it to 10 pt.
I've had changes to the default settings that the stroke weight can jump to when holding shift. I've had it jump from 0-10 when holding shift and 0-2.5-5.7.5-10 when holding shift before jumping by 10s. I've had it skip .25, .5, .75 stroke when adding a stroke from 0 pt.
Have tried resetting the preferences settings ?
Yep, didn't change it.
Does it happen with any document with any measurement units ( CM, px, .. ) ?
yep, changes the stroke weight and then keeps it consistent.
Are you working in a large document?
Larger than 6 metres?
Sorry to hear about this. In addition to what Monika has asked, would you mind sharing the version of the OS & Illustrator? Does it happen while working on a specific file?
You may try resetting the preferences manually once. Please follow the instructions below to do that:
**Please note that resetting preferences will remove all the custom settings and Illustrator will launch with default settings. This way all your old settings will be saved in .old folders and Illustrator will recreate new folders with default settings.
Let us know how it goes. Looking forward to your response.
Surprisingly I was able to find the problem in a way. It was a part of the template file I made for work files so I just made a new one and now the problem is gone. If anyone wants to disect the file to see what I did I can share it but thank you all for trying to help! It's been a pain to have to deal with.