I'm creting a simple switch node wich will be representing multiple buttons. I'm using an Arduino Nano with the NRF24L01 and a 10 uF capacitor attached to VCC and GND on the radio.

If I call present() multiple times some of the calls fail. I can fix this problem by adding delay(100) between the calls. Is this a power supply related problem?

The gateway is a NodeMCU-NRF24L01 gateway. Could this problem also be gateway related?

#define NUM_BUTTONS 10
for (int i = 0; i < NUM_BUTTONS; i++) {
  present(i, S_BINARY);
  delay(100); // if removed present() fails sometimes
}

Starting sensor (RNNNA-, 2.0.0)
TSM:INIT
TSM:RADIO:OK
TSP:ASSIGNID:OK (ID=42)
TSM:FPAR
TSP:MSG:SEND 42-42-255-255 s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
TSP:MSG:READ 0-0-42 s=255,c=3,t=8,pt=1,l=1,sg=0:0
TSP:MSG:FPAR RES (ID=0, dist=0)
TSP:MSG:PAR OK (ID=0, dist=1)
TSM:FPAR:OK
TSM:ID
TSM:CHKID:OK (ID=42)
TSM:UPL
TSP:PING:SEND (dest=0)
TSP:MSG:SEND 42-42-0-0 s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=ok:1
TSP:MSG:READ 0-0-42 s=255,c=3,t=25,pt=1,l=1,sg=0:1
TSP:MSG:PONG RECV (hops=1)
TSP:CHKUPL:OK
TSM:UPL:OK
TSM:READY
TSP:MSG:SEND 42-42-0-0 s=255,c=3,t=15,pt=6,l=2,sg=0,ft=0,st=ok:0100
TSP:MSG:SEND 42-42-0-0 s=255,c=0,t=17,pt=0,l=5,sg=0,ft=0,st=ok:2.0.0
TSP:MSG:SEND 42-42-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,ft=0,st=ok:0
TSP:MSG:READ 0-0-42 s=255,c=3,t=15,pt=6,l=2,sg=0:0100
TSP:MSG:SEND 42-42-0-0 s=255,c=3,t=11,pt=0,l=13,sg=0,ft=0,st=ok:Binary Sensor
TSP:MSG:SEND 42-42-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,ft=0,st=ok:1.0
TSP:MSG:SEND 42-42-0-0 s=0,c=0,t=3,pt=0,l=0,sg=0,ft=0,st=ok:
TSP:MSG:SEND 42-42-0-0 s=1,c=0,t=3,pt=0,l=0,sg=0,ft=0,st=ok:
!TSP:MSG:SEND 42-42-0-0 s=2,c=0,t=3,pt=0,l=0,sg=0,ft=0,st=fail:
!TSP:MSG:SEND 42-42-0-0 s=3,c=0,t=3,pt=0,l=0,sg=0,ft=1,st=fail:
TSP:MSG:SEND 42-42-0-0 s=4,c=0,t=3,pt=0,l=0,sg=0,ft=2,st=ok:
!TSP:MSG:SEND 42-42-0-0 s=5,c=0,t=3,pt=0,l=0,sg=0,ft=0,st=fail:
TSP:MSG:SEND 42-42-0-0 s=6,c=0,t=3,pt=0,l=0,sg=0,ft=1,st=ok:
!TSP:MSG:SEND 42-42-0-0 s=7,c=0,t=3,pt=0,l=0,sg=0,ft=0,st=fail:
TSP:MSG:SEND 42-42-0-0 s=8,c=0,t=3,pt=0,l=0,sg=0,ft=1,st=ok:
!TSP:MSG:SEND 42-42-0-0 s=9,c=0,t=3,pt=0,l=0,sg=0,ft=0,st=fail:
Request registration...
TSP:MSG:SEND 42-42-0-0 s=255,c=3,t=26,pt=1,l=1,sg=0,ft=1,st=ok:2
TSP:MSG:READ 0-0-42 s=255,c=3,t=27,pt=1,l=1,sg=0:1
Node registration=1
Init complete, id=42, parent=0, distance=1, registration=1