GTD clutch pedal to floor this morning

[Ljm15]

Hi,
First issue I’ve had with my 2015 GTD since buying.
After driving home last night, this morning I pushed the clutch pedal and went straight to the floor.
I started pumping the pedal maybe 50/75 times and eventually feeling came back to the pedal and it can now be used again.
Does this sound like a faulty master (or slave) cylinder? Have seen plenty of posts of masters needing replaced on mk5 golfs and upwards.
No leaks that I can see of anywhere either.
Thanks

 

[Ljm15]

So the car has sat for 2 hours after getting the clutch feel back.
It’s starting to get soft again after returning to the car.

Any ideas or thoughts based on experience on these clutch systems?

thanks

 

[ReadTheBook]

Any obvious brake fluid leaks? If not I’d say prob throw out bearing/slave.