Premiere Export

i have video 27 min long in 2704x1520 resolution. have made corect preset, , when try export it, goes way 50% , unexpected error occurs... if export less minutes, 7, same setup, manages export no problems. problem length? have space available.

first, check timeline gap or other anomaly @ halfway mark.

what effects or transitions being used?

any third party effects or transitions?

does when exporting within premiere pro adobe media encoder?

is video driver, third party effects/transitions, ppro, , ame date?

does tit gpu acceleration disabled?

what operating system, system specs, , hard drive setup (how many, kind, how full, , on each)?.

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