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This matches a known Excel issue where paste can fail silently in Office LTSC 2024. A fix is available, but it may not be applied automatically.
Try this:
- In Excel, go to File > Account.
- Select Update Options > Update Now.
- Make sure Office LTSC 2024 is updated to Build 17932.21000 or later.
- Restart Excel and test copy/paste again.
If paste still fails before the update is applied, use this workaround:
- Go to the Home tab.
- Open the Paste dropdown.
- Select Paste Special.
- Try one of these options: Formula, Formula and number formats, Values, Values and number formats, or Paste Link.
If the problem is specifically with Paste Special being missing or not working, also check:
- File > Options > Advanced.
- Under Cut, copy and paste, confirm Show Paste Options button when content is pasted is enabled.
- Start Excel in Safe Mode by holding CTRL while opening Excel.
- If Paste Special works in Safe Mode, disable add-ins one at a time and leave the conflicting add-in disabled or uninstall it.
If two separate Excel instances are open, open both workbooks in the same Excel instance. Paste attributes and some clipboard-related operations do not work correctly across multiple Excel instances.
References: