Sentence mode audio on app different to web

As the title says, i’ve imported an show from netflix and uploaded the audio from there as well using Audacity, and matched it up quite well with the web version of Lingq. However, when I go back to my app, it is a bit delayed. Is there some kind of issue, or is there a way to resolve this? Does the app version of the audio update later than the web version?
For what it’s worth, im using the android app