TB loads it's own payload (PL3) so you cant use another payload with the true blue dongle plugged in. Actually you cant use another payload at all even with the dongle out because TB CFW doesnt allow it, you can't say unplug the dongle then try and use a payload from a backup manager. TrueBlue wont split 4GB+ files (I know thats not what you were asking) only hermes payload does that. I've never tried NTFS on ps3 ever but im pretty sure it doesnt support that as well only hermes payload yet again.
Rebug TB edition is old and you can only play games supported up to 2.4 update past that rebug TB firmware wont work. Rebug will prolly NOT fix this problem as they stated way back they're not going to mess with TB anymore until they get a dongle and can test as the dongle has "suicide code" written it, meaning if you tamper with files that rebug needs to tamper with it will brick itself.
Rebug gives you more "debug/dev" options if you will like QA toggle/flagging for downgrading, using other peoples saves (from games that usually wont let you), delete trophies from XMB, disable cinavia protection on blurays (which you can do on CFW as well because rebug team released a pkg).
PS3 Slim 4.21.2 Rebug REX 4.31 Spoof (external 1TB/3TB), PS2 Fat w/ Internal HD