listSRAfile() fails for SRX accessions

[RoganGrant]

On multiple machines, I keep getting the following error when attempting to get SRA runs from SRX experiment accessions:

Error in if (is.na(sra_acc$run[i])) { : argument is of length zero

I have tried multiple datasets, but here is a reproducible example:
library(SRAdb) srafile = getSRAdbFile() con = dbConnect(RSQLite::SQLite(),srafile) kangMeta$srx = substr(kangMeta$relation.1, regexpr("SRX", kangMeta$relation.1), nchar(as.character(kangMeta$relation.1))) kangfiles = listSRAfile(kangMeta$srx, con)

In this case, the SRX accessions are:

[1] "SRX4456604" "SRX4456605" "SRX4456606" "SRX4456607" "SRX4456608" "SRX4456609" "SRX4456610" "SRX4456611" "SRX4456612" "SRX4456613" "SRX4456614" "SRX4456615" "SRX4456616" "SRX4456617"
[15] "SRX4456618" "SRX4456619" "SRX4456620" "SRX4456621" "SRX4456622" "SRX4456623" "SRX4456624" "SRX4456625" "SRX4456626" "SRX4456627" "SRX4456628" "SRX4456629" "SRX4456630"

so there is not an issue with the IDs. Furthermore, this exact code ran without issue in the past.

R session info:

R version 3.5.1 (2018-07-02)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Red Hat Enterprise Linux Server 7.3 (Maipo)

Matrix products: default
BLAS: /hpc/software/lapack/3.6.0_gcc/lib64/libblas.so.3.6.0
LAPACK: /hpc/software/lapack/3.6.0_gcc/lib64/liblapack.so.3.6.0

locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 LC_PAPER=en_US.UTF-8
[8] LC_NAME=C LC_ADDRESS=C LC_TELEPHONE=C LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C

attached base packages:
[1] stats4 tcltk parallel stats graphics grDevices utils datasets methods base

other attached packages:
[1] AnnotationDbi_1.44.0 DBI_1.0.0 SRAdb_1.44.0 RCurl_1.95-4.11 bitops_1.0-6 graph_1.60.0
[7] RSQLite_2.1.1 GEOquery_2.50.5 Matrix_1.2-15 cowplot_0.9.4 RPushbullet_0.3.1 doParallel_1.0.14
[13] DESeq2_1.22.2 stringr_1.4.0 dplyr_0.8.0.1 plyr_1.8.4 readxl_1.3.0 recount_1.8.2
[19] SummarizedExperiment_1.12.0 DelayedArray_0.8.0 BiocParallel_1.16.6 matrixStats_0.54.0 Biobase_2.42.0 GenomicRanges_1.34.0
[25] GenomeInfoDb_1.18.2 IRanges_2.16.0 S4Vectors_0.20.1 BiocGenerics_0.28.0 ggplot2_3.1.0 rlist_0.4.6.1
[31] doSNOW_1.0.16 snow_0.4-3 iterators_1.0.10 foreach_1.4.4 biomaRt_2.38.0

loaded via a namespace (and not attached):
[1] colorspace_1.4-0 qvalue_2.14.1 htmlTable_1.13.1 XVector_0.22.0 base64enc_0.1-3 rstudioapi_0.9.0 bit64_0.9-7
[8] xml2_1.2.0 codetools_0.2-16 splines_3.5.1 geneplotter_1.60.0 knitr_1.21 Formula_1.2-3 jsonlite_1.6
[15] Rsamtools_1.34.1 annotate_1.60.0 cluster_2.0.7-1 rentrez_1.2.1 readr_1.3.1 compiler_3.5.1 httr_1.4.0
[22] backports_1.1.3 assertthat_0.2.0 lazyeval_0.2.1 limma_3.38.3 acepack_1.4.1 htmltools_0.3.6 prettyunits_1.0.2
[29] tools_3.5.1 gtable_0.2.0 glue_1.3.0 GenomeInfoDbData_1.2.0 reshape2_1.4.3 doRNG_1.7.1 Rcpp_1.0.0
[36] cellranger_1.1.0 bumphunter_1.24.5 Biostrings_2.50.2 rtracklayer_1.42.1 xfun_0.4 rngtools_1.3.1 XML_3.98-1.17
[43] zlibbioc_1.28.0 scales_1.0.0 BSgenome_1.50.0 VariantAnnotation_1.28.11 hms_0.4.2 derfinderHelper_1.16.1 RColorBrewer_1.1-2
[50] yaml_2.2.0 curl_3.3 memoise_1.1.0 gridExtra_2.3 downloader_0.4 pkgmaker_0.27 rpart_4.1-13
[57] latticeExtra_0.6-28 stringi_1.3.1 genefilter_1.64.0 checkmate_1.9.1 GenomicFeatures_1.34.3 bibtex_0.4.2 rlang_0.3.1
[64] pkgconfig_2.0.2 GenomicFiles_1.18.0 lattice_0.20-38 purrr_0.3.0 GenomicAlignments_1.18.1 htmlwidgets_1.3 bit_1.1-14
[71] tidyselect_0.2.5 magrittr_1.5 R6_2.4.0 Hmisc_4.2-0 pillar_1.3.1 foreign_0.8-71 withr_2.1.2
[78] survival_2.43-3 nnet_7.3-12 tibble_2.0.1 crayon_1.3.4 derfinder_1.16.1 progress_1.2.0 locfit_1.5-9.1
[85] grid_3.5.1 data.table_1.12.0 blob_1.1.1 digest_0.6.18 xtable_1.8-3 tidyr_0.8.2 munsell_0.5.0
[92] registry_0.5