Lighthouse: Failed to apply weight for promoted attestation

[ch4r10t33r]

Lighthouse persistently reports the following error in the logs. However justifications and finalisations continue to occur.

Dec 19 13:18:49.041 INFO  Interval 3: Accepting accumulated attestations  slot: 93
Dec 19 13:18:49.041 WARN  Failed to apply weight for promoted attestation  validator_id: 3, head_root: 0x766afa0c291ff5e5c2177c51b38e23f96d1c6c16c33ca5f50c541e2ef3ccfd61, error: Block 0x766afa0c291ff5e5c2177c51b38e23f96d1c6c16c33ca5f50c541e2ef3ccfd61 not found in cache or store
Dec 19 13:18:49.041 WARN  Failed to apply weight for promoted attestation  validator_id: 1, head_root: 0x013400fa4050ef1e4bfe6840bdf6f66c837c4b1dd76d9f9b7c6abad51975eb23, error: Block 0x013400fa4050ef1e4bfe6840bdf6f66c837c4b1dd76d9f9b7c6abad51975eb23 not found in cache or store
Dec 19 13:18:49.041 WARN  Failed to apply weight for promoted attestation  validator_id: 0, head_root: 0x013400fa4050ef1e4bfe6840bdf6f66c837c4b1dd76d9f9b7c6abad51975eb23, error: Block 0x013400fa4050ef1e4bfe6840bdf6f66c837c4b1dd76d9f9b7c6abad51975eb23 not found in cache or store
Dec 19 13:18:49.041 WARN  Failed to apply weight for promoted attestation  validator_id: 2, head_root: 0x013400fa4050ef1e4bfe6840bdf6f66c837c4b1dd76d9f9b7c6abad51975eb23, error: Block 0x013400fa4050ef1e4bfe6840bdf6f66c837c4b1dd76d9f9b7c6abad51975eb23 not found in cache or store
Dec 19 13:18:49.042 WARN  Failed to ensure candidate root exists in proto array  candidate: 0xeadf4039166f631e43feaa35a4e9336a01bdd6878acf3d429e307137786d6adb, error: Block 0xeadf4039166f631e43feaa35a4e9336a01bdd6878acf3d429e307137786d6adb not found in cache or store

[hopinheimer]

These are benign warn logs caused by stale gossip duplication. So shouldn't be to worried about it, although I intent to not have these around.