Why is my audio not in sync with my video after exporting?

[LG Golden]

Hey everyone

I've just finished a video and in the Premiere timeline it's perfectly in sync, but when I go to the exported file, the video is in like slow motion but the audio is normal speed, making it totally out of sync. When I exported I used these settings: 

Source range: Entire sequence

Format: H.264

Preset: Match Souce - Adaptive medium bitrate

Render at Maxium Depth

Performance: Hardware Encoding

Profile: High

Bitrate Encoding: VBR, 1 pass

Audio Bitrate: 320

Use Maximum Render Quality

Everything else was kept the same. Please help!

[LG Golden · Accepted solution]

So I kinda solved this myself lol. I forgot I had a preset from when this happened before. The only difference was that my target bitrate was set to 15 on the preset. No idea how that changes anything but it sure did work!