Gas estimation / simulation fails for IBC txs

[mdyring]

It seems gas estimation fails for the IBC relayer (hermes), leading it to fall back to it's max gas value:

Oct 06 01:59:29.923 ERROR ThreadId(33) [emoney-3] failed to estimate gas, falling back on max gas, error: 
   0: GRPC call return error status status: InvalidArgument, message: "failed to execute message; message index: 0: cannot update client with ID 07-tendermint-7: failed to verify header: invalid header: new header has a time from the future 2021-10-06 01:59:22.155473287 +0000 UTC (now: 2021-10-06 01:58:46.255499676 +0000 UTC; max clock drift: 10s): invalid request", details: [], metadata: MetadataMap { headers: {"content-type": "application/grpc"} }

Location:
   /home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/flex-error-0.4.3/src/tracer_impl/eyre.rs:10

--
Oct 06 02:34:32.413 ERROR ThreadId(33) [emoney-3] failed to estimate gas, falling back on max gas, error: 
   0: GRPC call return error status status: InvalidArgument, message: "failed to execute message; message index: 0: cannot update client with ID 07-tendermint-7: failed to verify header: invalid header: new header has a time from the future 2021-10-06 02:34:23.17472538 +0000 UTC (now: 2021-10-06 02:33:59.48748663 +0000 UTC; max clock drift: 10s): invalid request", details: [], metadata: MetadataMap { headers: {"content-type": "application/grpc"} }

Location:
   /home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/flex-error-0.4.3/src/tracer_impl/eyre.rs:10

--
Oct 06 03:41:32.061 ERROR ThreadId(33) [emoney-3] failed to estimate gas, falling back on max gas, error: 
   0: GRPC call return error status status: InvalidArgument, message: "failed to execute message; message index: 0: cannot update client with ID 07-tendermint-7: failed to verify header: invalid header: new header has a time from the future 2021-10-06 03:41:24.605842033 +0000 UTC (now: 2021-10-06 03:40:41.333685695 +0000 UTC; max clock drift: 10s): invalid request", details: [], metadata: MetadataMap { headers: {"content-type": "application/grpc"} }

Location:
   /home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/flex-error-0.4.3/src/tracer_impl/eyre.rs:10

--
Oct 06 05:18:50.507 ERROR ThreadId(33) [emoney-3] failed to estimate gas, falling back on max gas, error: 
   0: GRPC call return error status status: InvalidArgument, message: "failed to execute message; message index: 0: cannot update client with ID 07-tendermint-7: failed to verify header: invalid header: new header has a time from the future 2021-10-06 05:18:42.964673604 +0000 UTC (now: 2021-10-06 05:18:21.493549748 +0000 UTC; max clock drift: 10s): invalid request", details: [], metadata: MetadataMap { headers: {"content-type": "application/grpc"} }

Location:
   /home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/flex-error-0.4.3/src/tracer_impl/eyre.rs:10

--
Oct 06 06:09:30.381 ERROR ThreadId(33) [emoney-3] failed to estimate gas, falling back on max gas, error: 
   0: GRPC call return error status status: InvalidArgument, message: "failed to execute message; message index: 0: cannot update client with ID 07-tendermint-7: failed to verify header: invalid header: new header has a time from the future 2021-10-06 06:09:17.177324119 +0000 UTC (now: 2021-10-06 06:08:31.65285787 +0000 UTC; max clock drift: 10s): invalid request", details: [], metadata: MetadataMap { headers: {"content-type": "application/grpc"} }

Location:
   /home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/flex-error-0.4.3/src/tracer_impl/eyre.rs:10

I imagine this is due to the 1 minute block times and that a block is not being generated when the estimation is done? (so that the error only appears on simulation)