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When i join (CtrlJ) duplicated (ShiftD) multiple object or mesh then blender performs very slow and file size increases too from 100mb to 1gb. Does anyone have solutions for this issue?

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  • $\begingroup$ You may have to share the file for some of us to diagnose what's going on. Your description is limited and it's hard to say why you are having issue, since you could have done many things - you personally aren't aware - to the file that causes that issue. How big is the mesh to begin with and how many times did you actually copy the object. Try Alt+J to minimise memory waste. The devils are in the details not just a few words they never show themselves. $\endgroup$ – hawkenfox Nov 10 '18 at 6:09
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    $\begingroup$ @Amir kbd formatting should be per key, e.g. <kbd>Ctrl</kbd>+<kbd>J</kbd> $\endgroup$ – Ray Mairlot Nov 10 '18 at 16:18
  • $\begingroup$ @Mahesh Take a look at this and this as they might be helpful. Do these before saving the .blend file. $\endgroup$ – Amir Nov 10 '18 at 17:13

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