Clutch pedal randomly goes to the floor

[ANVIL]

Clutch issue RB25DET S1 w stock transmission

Cant figure out this issue and would like some opinions and input. Problem I am having is my clutch pedal randomly goes to the floor while driving. Its like it just dies and then I can pull it up with my foot then it will feel normal again... until it randomly does it again. I can't exactly pinpoint on why or what triggers it. No visible leaks. I replaced clutch slave cylinder with a brand new oem one. deleted dampener a long time ago and also while I replaced the slave I replaced the clutch hard line with a chase bays line. bled it several times and pedal feels ok. while bleeding I can see the slave rod has normal movement. Next thing I plan to do is adjust my clutch pedal but not feeling confident about that helping. Thinking about replacing the clutch master next as well. Is there anything else that I can check? What can be the cause of this?

[USMCgetsome]

do you still have the clutch pedal assist box installed before the slave cylinder? Come stock on the 240sx. What i did to bypass that was ss line from master to slave cylinder. This fixed my issue.