panic: bitlists are different lengths

[DigiDr]

[2020-02-16 04:30:52] INFO sync: Requesting parent block currentSlot=267714 parentRoot=2fadb24ae0ae
panic: bitlists are different lengths

goroutine 191 [running]:
github.com/prysmaticlabs/go-bitfield.Bitlist.Overlaps(0xc03a8afb00, 0x11, 0x11, 0xc03b8e40c0, 0x11, 0x11, 0x7e)
external/com_github_prysmaticlabs_go_bitfield/bitlist.go:148 +0x1cd
github.com/prysmaticlabs/prysm/beacon-chain/core/helpers.AggregateAttestations(0xc022090c00, 0x70, 0x80, 0x0, 0x1, 0x1, 0x0, 0x0)
beacon-chain/core/helpers/attestation.go:35 +0x106
github.com/prysmaticlabs/prysm/beacon-chain/operations/attestations.(*Service).aggregateAttestations(0xc0112157c0, 0x1bc3d40, 0xc0000ba018, 0xc010ee0000, 0x9fd, 0xa00, 0x0, 0x0)
beacon-chain/operations/attestations/aggregate.go:62 +0x5db
github.com/prysmaticlabs/prysm/beacon-chain/operations/attestations.(*Service).aggregateRoutine(0xc0112157c0)
beacon-chain/operations/attestations/aggregate.go:28 +0x244
created by github.com/prysmaticlabs/prysm/beacon-chain/operations/attestations.(*Service).Start
beacon-chain/operations/attestations/service.go:49 +0x61

Running sha256:a26a1ac18ae72875ec978cb04167910546c3452451592a87877a49ed275ace33