Loop Hold 2S

In the manual it says pressing SHIFT + Arp/Loop On “Activates Hold mode for the Arpeggiator and Looper. The On button will flash when Hold mode is active.”

When using the Loop function I cannot get it to hold the loop (On flashes). Holding down some keypads I can loop the sequence but when I release the keys it behaves the same as if I didn’t activate Hold. I am doing something wrong or is the manual incorrect?