Two things I’d look at would be the timecode on your timeline and and possibly breaking up the sequence into 2 chunks.
First, your sequence timecode MUST match your tape TC on INSERT layoffs over 5 minutes as a rule of thumb. ASSEMBLE edit to tape does not matter here. I’m assuming that your show starts at an hour (1:00:00;00+ B&T prior), so your tape TC for an INSERT layoff must match. If your sequence crosses a dropped frame that your tape does not see you will get a “Dropped frames on playback” error. So, either do an assemble edit to tape or match your sequence/tape TC.
If this doesn’t work, stripe the tape, INSERT to TAPE the show up to your problematic sequence section. Then insert the remaining sequence. Often I will get errors on export and I’ve found if you can get the show out in chunks it’s better than not at all.
GL,
Todd