Getting AccessDenied when cli works

[geoffjentry]

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• [ x] a possible bug
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This issue does seem to have come up from time to time although the existing issues all point to check_region=FALSE which should both no longer be an issue as it's now the default value nor did it resolve my issue (understandably so). I updated to the development version and the same symptoms persist.

Using aws.s3 I'm unable to connect to any bucket, even public ones although the CLI is working fine. I've also tried this on paws which seems to be working ok as well. Specifically I'm:

• Assuming an IAM role via command line to set my credentials
• In R, my credentials look correct via locate_credentials() including region
• e.g. get_bucket("1000genomes") or a private bucket for my company. This also occurs with bucketList()

I always get AccessDenied, although if for instance I specify a nonsense bucket I'll get a NoSuchBucket so it's clearly connecting to some extent. Accessing the same buckets via the CLI always works fine.

The problem also occurs if I directly pass in my credentials into the call via the ... parameters.

Session Info:

R version 3.6.3 (2020-02-29)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS Mojave 10.14.6

Matrix products: default
BLAS:   /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libRblas.0.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libRlapack.dylib

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] aws.signature_0.6.0 aws.s3_0.3.22

loaded via a namespace (and not attached):
[1] httr_1.4.2      compiler_3.6.3  R6_2.5.0        tools_3.6.3
[5] base64enc_0.1-3 curl_4.3        xml2_1.3.2      digest_0.6.27