SAGA hydrology toolbox Error: select a library

I am having trouble getting the SAGA hydrology toolbox running. Here when I try to fill sinks in the DEM a series of errors are flagged in the log file. This includes for ‘select a library’, ‘DEM’ and ‘input file’. Load grid also fails (see log file below).

I’m using SAGA 2.3.2 and QGIS 3.4.3

Processing algorithm…
Algorithm 'Fill sinks' starting…
Input parameters:
{ 'DEM' : 'C:/Users/cbroderick/Downloads/srtm_35_02_ASCII/srtm_35_02.asc', 'MINSLOPE' : 0.01, 'RESULT' : 'C:/Users/cbroderick/AppData/Local/Temp/processing_f1fe9d24ac6c4b08972f8ddd5f612ef7/5ba9f4f078044c1bae470dfcd5f06f6e/RESULT.sdat' }

io_gdal 0 -TRANSFORM 1 -RESAMPLING 3 -GRIDS "C:/Users/cbroderick/AppData/Local/Temp/processing_f1fe9d24ac6c4b08972f8ddd5f612ef7/4d7bb3df467f4247aa6359cb5b93f904/srtm3502.sgrd" -FILES "C:UserscbroderickDownloadssrtm_35_02_ASCIIsrtm_35_02.asc"
ta_preprocessor "Fill Sinks (Planchon/Darboux, 2001)" -DEM "C:/Users/cbroderick/AppData/Local/Temp/processing_f1fe9d24ac6c4b08972f8ddd5f612ef7/4d7bb3df467f4247aa6359cb5b93f904/srtm3502.sgrd" -MINSLOPE 0.01 -RESULT "C:/Users/cbroderick/AppData/Local/Temp/processing_f1fe9d24ac6c4b08972f8ddd5f612ef7/5ba9f4f078044c1bae470dfcd5f06f6e/RESULT.sdat"

C:WINDOWSsystem32>set SAGA=C:/PROGRA~1/QGIS3~1.4/appssaga-ltr

C:WINDOWSsystem32>set SAGA_MLB=C:/PROGRA~1/QGIS3~1.4/appssaga-ltrmodules

C:WINDOWSsystem32>PATH=C:PROGRA~1QGIS3~1.4appsqgisbin;C:PROGRA~1QGIS3~1.4appsPython37;C:PROGRA~1QGIS3~1.4appsPython37Scripts;C:PROGRA~1QGIS3~1.4appsqt5bin;C:PROGRA~1QGIS3~1.4appsPython27Scripts;C:PROGRA~1QGIS3~1.4bin;C:WINDOWSsystem32;C:WINDOWS;C:WINDOWSsystem32WBem;C:PROGRA~1QGIS3~1.4appsPython37libsite-packagespywin32_system32;C:PROGRA~1QGIS3~1.4appsPython37libsite-packagesnumpy.libs;C:/PROGRA~1/QGIS3~1.4/appssaga-ltr;C:/PROGRA~1/QGIS3~1.4/appssaga-ltrmodules

C:WINDOWSsystem32>saga_cmd io_gdal 0 -TRANSFORM 1 -RESAMPLING 3 -GRIDS "C:/Users/cbroderick/AppData/Local/Temp/processing_f1fe9d24ac6c4b08972f8ddd5f612ef7/4d7bb3df467f4247aa6359cb5b93f904/srtm3502.sgrd" -FILES "C:UserscbroderickDownloadssrtm_35_02_ASCIIsrtm_35_02.asc"
Error: select a library
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SAGA Version: 2.3.2 (64 bit)


68 loaded tool libraries (630 tools):
- climate_tools
- contrib_perego
- db_odbc
- db_pgsql
- docs_html
- garden_3d_viewer
- garden_fractals
- garden_games
- garden_learn_to_program
- garden_webservices
- grid_analysis
- grid_calculus
- grid_calculus_bsl
- grid_filter
- grid_gridding
- grid_spline
- grid_tools
- grid_visualisation
- imagery_classification
- imagery_isocluster
- imagery_maxent
- imagery_photogrammetry
- imagery_segmentation
- imagery_svm
- imagery_tools
- io_esri_e00
- io_gps
- io_grid
- io_grid_image
- io_shapes
- io_shapes_dxf
- io_table
- io_virtual
- pj_georeference
- pj_geotrans
- pj_proj4
- pointcloud_tools
- pointcloud_viewer
- shapes_grid
- shapes_lines
- shapes_points
- shapes_polygons
- shapes_tools
- shapes_transect
- sim_cellular_automata
- sim_ecosystems_hugget
- sim_erosion
- sim_fire_spreading
- sim_hydrology
- sim_ihacres
- sim_qm_of_esp
- sim_rivflow
- statistics_grid
- statistics_kriging
- statistics_points
- statistics_regression
- ta_channels
- ta_compound
- ta_hydrology
- ta_lighting
- ta_morphometry
- ta_preprocessor
- ta_profiles
- ta_slope_stability
- table_calculus
- table_tools
- tin_tools
- tin_viewer

type -h or --help for further information


C:WINDOWSsystem32>saga_cmd ta_preprocessor "Fill Sinks (Planchon/Darboux, 2001)" -DEM "C:/Users/cbroderick/AppData/Local/Temp/processing_f1fe9d24ac6c4b08972f8ddd5f612ef7/4d7bb3df467f4247aa6359cb5b93f904/srtm3502.sgrd" -MINSLOPE 0.01 -RESULT "C:/Users/cbroderick/AppData/Local/Temp/processing_f1fe9d24ac6c4b08972f8ddd5f612ef7/5ba9f4f078044c1bae470dfcd5f06f6e/RESULT.sdat"
Error: input file [C:/Users/cbroderick/AppData/Local/Temp/processing_f1fe9d24ac6c4b08972f8ddd5f612ef7/4d7bb3df467f4247aa6359cb5b93f904/srtm3502.sgrd]
Error: DEM
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SAGA Version: 2.3.2 (64 bit)

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library path: C:PROGRA~1QGIS3~1.4appssaga-ltrmodules
library name: ta_preprocessor
library : Preprocessing
tool : Fill Sinks (Planchon/Darboux, 2001)
author : Copyrights (c) 2003 by Volker Wichmann
processors : 4 [4]
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Load grid: C:/Users/cbroderick/AppData/Local/Temp/processing_f1fe9d24ac6c4b08972f8ddd5f612ef7/4d7bb3df467f4247aa6359cb5b93f904/srtm3502.sgrd...
failed

Usage: saga_cmd ta_preprocessor 3 [-DEM <str>] [-RESULT <str>] [-MINSLOPE <double>]
-DEM:<str> DEM
Grid (input)
-RESULT:<str> Filled DEM
Grid (output)
-MINSLOPE:<double> Minimum Slope [Degree]
Floating point
Minimum: 0.000000
Default: 0.010000

C:WINDOWSsystem32>exit
Execution completed in 13.51 seconds
Results:
{'RESULT': 'C:/Users/cbroderick/AppData/Local/Temp/processing_f1fe9d24ac6c4b08972f8ddd5f612ef7/5ba9f4f078044c1bae470dfcd5f06f6e/RESULT.sdat'}

Loading resulting layers
The following layers were not correctly generated.<ul><li>C:/Users/cbroderick/AppData/Local/Temp/processing_f1fe9d24ac6c4b08972f8ddd5f612ef7/5ba9f4f078044c1bae470dfcd5f06f6e/RESULT.sdat</li></ul>You can check the 'Log Messages Panel' in QGIS main window to find more information about the execution of the algorithm.