As a test, please repeat the process using LSPP v4.9 which has a version for Mac. Without your .cfile we cannot tell what the problem is, but hopefully it does not occur in the v4.9. Note that d3plot files generated with older LS-DYNA versions can be opened with newer LSPP versions also. Also from Save Keyword As in LSPP, you can select the LS-DYNA version for which the keyword file is intended.
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