I contacted Sony product support chat, and the answer is as thus: There is a file size limit of 2gb per clip.
Therefore, depending on what resolution you are recording in, it is impossible to record long, continuous clips. Therefore, for instance, if I am trying to record my band's full performance, and leave the camera running constantly while playing, it will automatically chop up the performance into 2gb files. When recording in 4k, this probably means a new file every 5 minutes or so.
The problem is that when you stitch all of these files together during editing, they are NOT continuous. You will have a "skip" where there is missing data between the end of the last file and the beginning of the next one. This absolutely ruins the recording, especially if the "skips" are in the middle of songs. Sony needs to stop using the FAT32 file format, because from what I understand, this is the problem. These files are limited to 2gb in size.
Once the file format is out of the stone age, this problem should be taken care of. Until then, we are stuck with missing data between files when trying to edit these clips together. Rather upsetting.