Why is my video divided into multiple clips when I am recording with my YI 4K+ Action Camera?

a. If looping is on, videos will be split every 5 minutes. After the SD card is full,it will automatically delete the earliest video file and continue recording.
b. If looping is off, videos will be split every 2GB. After the SD card is full, it will stop recording the video.
c. A SD card with low performance also causes the video to be divided.  We highly recommend using one of the suggested SD cards.
d. SD card must be FAT32. A single video file cannot exceed 4GB. If a video exceeds 4GB, the camera will automatically generate follow-up video clips while recording.