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Found it!!! It actually was an error in the .lib file. There are a few instances of "(vdd1" which should have a different bracket: "{vdd1". Now it runs. And this was from the recent download suggested.

This precise error came up here recently.The fact that you got an error shows you must be running LTspice V24.1.x. This "error" has been in the library since the beginning, but previous versions of LTspice didn't flag it and allowed it to proceed.

eetech00 uploaded a fixed library that you presumably didn't find: CD4000_v(65a).lib on Feb 21 2025.