I don't understand why this continues to be a topic of discussion. Using exfat with any type of homebrew or CFW absolutely WILL cause filesystem corruption, it's just a matter of time. If you are willing to accept the risk that at some point, your SD card will need to be reformatted and all data...
Glad to hear it's not just me with larger files. As others have mentioned, small NSPs are no problem. When attempting a larger transfer the process hangs with no progress. Task manager shows no CPU usage and no network activity, so definitely looks like Boop is the culprit. In any case, great...