Can't send any more paperplanes

I'm unable to send more paperplanes even though all 7 I've thrown to the winds have been caught already. My impression was that the limit should only apply to planes in flight.

<img width="1295" height="485" alt="Image" src="https://github.com/user-attachments/assets/abb49358-f5b8-43aa-afd4-6b3bb3554b99" />