Error during placement

[mxmxchere]

What happened:
The mcm is reporting error during placement.

What you expected to happen:
A machine to be created

How to reproduce it (as minimally and precisely as possible):
unfortunately this issue is not reproducable reliably, but it happens very often in the last time when ordering machines. try to scale up and down machines to provoke this error

Anything else we need to know:
The complete error is:

task "Waiting until shoot worker nodes have been reconciled" failed: Error while waiting for Worker shoot--23ke-ci--23ke-run-cef1/23ke-run-cef1 to become ready: error during reconciliation: Error reconciling worker: Failed while waiting for all machine deployments to be ready: 'machine(s) failed: 1 error occurred: "shoot--23ke-ci--23ke-run-cef1-worker-cx41-fsn1-dc14-c6cb8-657z6", "shoot--23ke-ci--23ke-run-cef1-worker-cx41-fsn1-dc14-c6cb8-g9pgj": Cloud provider message - machine codes error: code = [Unavailable] message = [error during placement (resource_unavailable)]'