problems with deleting lines

[Anonymous]

Hi, i have done my first steps with AutoCAD.

i`m using AutoCAD on Mac. By deleting lines, there are strange things in background. i´ve done a screenshoot. 

the screenshot shows a deleted line and a not deleted line.

perhaps someone does have an idea.

thank you

[vinodkl · Accepted solution]

Hi,

It looks like some graphic issue.

Here is a thread similar to yours: https://forums.autodesk.com/t5/autocad-for-mac-forum/autocad-2021-having-to-regen-all-the-time-graph... 

[maxim_k]

Welcome to Autodesk Forums!

Hi @Anonymous,

It is knowing issue with some Radeon graphic cards.
Please look here for workaround:
https://knowledge.autodesk.com/support/autocad-for-mac/troubleshooting/caas/sfdcarticles/sfdcarticles/mosaic-or-pixelated-graphics-appear-in-autocad-for-mac-2021.html?_ga=2.14905264.720198027.1599463203-169688753.1599463203#:~:text=To%20solve%20the%20issue%2C%20run,making%20the%20change%20restart%20AutoCAD.

[Anonymous]

Thank you, the change from „metal“ to „open gl“ has solved my problem. 

thank you