Thank you for the reply!
glsls version is 3.1,
I saw your post and tried executing the program with the "s" parameter and it indeed works correctly by doing so (the pixel options + export of preview work flawlessly btw).
A minor issue I found was that images of a certain attribute will not load. More than likely the size dimensions must be within a certain range. Images whose dimensions are larger than the program can handle (I experimented with a 1004 px width x 417 px height image) will not load. Not sure if there is a manual for this program, and if this is mentioned in there. But in case it isn't, this is just for your info (in case you didn't know already).
Lastly, I have attached a full report of my pc's specs below (apologies if its too long, but I didn't see an option to attach a file, so I only put the items I think are important):
Great stuff you have thus far!
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System Information
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Time of this report: 8/11/2019, 23:41:30
Machine name: MMH
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_ldr.190612-0600)
Language: English (Regional Setting: English)
System Manufacturer: Dell Inc.
System Model: Dell System XPS L502X
BIOS: Default System BIOS
Processor: Intel(R) Core(TM) i7-2630QM CPU @ 2.00GHz (8 CPUs), ~2.0GHz
Memory: 8192MB RAM
Available OS Memory: 8086MB RAM
Page File: 5283MB used, 10886MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: 120 DPI (125 percent)
System DPI Setting: 120 DPI (125 percent)
DWM DPI Scaling: UnKnown
DxDiag Version: 6.01.7601.17514 32bit Unicode
------------
DxDiag Notes
------------
Display Tab 1: No problems found.
Sound Tab 1: No problems found.
Input Tab: No problems found.
--------------------
DirectX Debug Levels
--------------------
Direct3D: 0/4 (retail)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)
---------------
Display Devices
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Card name: Intel(R) HD Graphics Family
Manufacturer: Intel Corporation
Chip type: Intel(R) HD Graphics Family
DAC type: Internal
Device Key: Enum\PCI\VEN_8086&DEV_0116&SUBSYS_04B61028&REV_09
Display Memory: 1696 MB
Dedicated Memory: 64 MB
Shared Memory: 1632 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: unknown
Monitor Id: AUO17ED
Native Mode: 1920 x 1080(p) (60.011Hz)
Output Type: Internal
Driver Name: igdumd64.dll,igd10umd64.dll,igd10umd64.dll,igdumdx32,igd10umd32,igd10umd32
Driver File Version: 8.15.0010.2455 (English)
Driver Version: 8.15.10.2455
DDI Version: 10.1
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 9/5/2013 14:58:53, 8310272 bytes
WHQL Logo'd: Yes
WHQL Date Stamp:
Device Identifier: {D7B78E66-4256-11CF-CE7F-BB24B4C2C435}
Vendor ID: 0x8086
Device ID: 0x0116
SubSys ID: 0x04B61028
Revision ID: 0x0009