Common Proxmox backup flaw leaves new VMs unprotected, fix outlined

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A Proxmox user discovered a common backup flaw where jobs set to 'selected VMs' exclude newly created virtual machines. The problem stems from backup jobs only protecting guests that existed when the job was created. The author recommends configuring backups with 'Selection mode: All' to automatically include new VMs, while excluding temporary scratch guests. Proper setup requires nightly snapshot backups with consistent retention policies and verification procedures to ensure reliability.

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