Just ran into this same bug using the current version of Premiere Pro on a Mac, running OS X Catlina ... used iMovie to capture DV clips ... since, due to another bug, PP no longer can capture DV itself (limited to HDV). Clips play fine at their full length in QuickTime, but when imported into PP, are truncated at 1 frame under 10 seconds. My only workaround was to convert them to ProRes using Compressor (v. 4.4.4) ... Adobe Media Encoder had the same issue (only recognized the first 10 seconds of each clip). So c'mon Adobe, please find us a way to both capture DV footage directly within PP like it used to, and then to be able to correctly use DV footage once captured. And don't tell us DV has been deprecated: Other software works with it just fine.
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