The background picture disappears after the long picture is exported from American.

What you want to ask is the reason why the background image disappears after the long image is exported. Network reasons, insufficient memory, according to the script to query the house.

1, network reason: the network speed is too slow or abnormal, which may lead to problems such as invisibility or abnormal playback.

2. Insufficient memory: insufficient memory leads to image export error and background image loss.