Random "HTTP 503 Unavailable"

Hello,

same problem for me here.
when I’m using curl and the locks/bridge is doing nothing its working 9 of 10 tries.

but when the lock is currently performing any lock action (even lock’n’ go where its doing nothing in the first 20s but waiting) its working 0 of 10 tries. so i am not able to ask the locks for the currrent lock state when they are performing any action (closing, opening, lockngo)
i also getting the 503 error.

any idea?