Data changing datum in AccessMod

[SteeveEbener]

Current Behavior

For the analysis over Bangladesh we were supposed to use data projected according to the following national system:

Gulshan_303_Bangladesh_TM
WKID: 3106 Authority: EPSG
Projection: Transverse_Mercator
False_Easting: 500000.0
False_Northing: 0.0
Central_Meridian: 90.0
Scale_Factor: 0.9996
Latitude_Of_Origin: 0.0
Linear Unit: Meter (1.0)

=> I projected the data accordingly, imported them in AccessMod, run the analysis and the exported them. Result the data were shifted as per the screenshot below.

The shift seems to be explained by a difference in datum in the exported data:

WGS_1984_Transverse_Mercator
Authority: Custom
Projection: Transverse_Mercator
false_easting: 500000.0
false_northing: 0.0
central_meridian: 90.0
scale_factor: 0.9996
latitude_of_origin: 0.0
Linear Unit: Meter (1.0)

Expected Behavior

The datum associated to the data is not modified during the import

Possible Solution

Either the change of datum does not occur or, if the datum is not in the library, a message is provided to the user indicating that it will be changed to WGS 84.

Steps to Reproduce

1. Create a new project using the DEM you will find in this dropbox folder: https://www.dropbox.com/sh/uzobufqxypagpbd/AADJcPCUPc70JVpYMXXZT7sva?dl=0
2. Export the DEM
3. Open both raster (before import, after export) in a GIS softrware
4. See the shift and difference in datum

Detailed Description

See above

###Screenshot