GSRACAD2026 Build 260123 hang and exit after load pyrx

[hs0wkc]

I have been using PyRx on GstarCAD2025
and made some useful python script to help my work. but yesterday I try to install GSRACAD2026 Build 260123. This program run normally. But when I try to APPLOAD RxLoaderG26.0.grx this program hang and exit.
Then show GCAD Error Report window.
how to fix it?
Which GSTARCAD2026 Build no that can use pyrx?

Note:
Python 3.12.10
cad-pyrx 2.2.47.5305
wxPython 4.2.4

[CEXT-Dan]

Hi, I’m using GSTARCAD2026 Build 251031

PyRx version <2.2.47.5305.20260305> loaded:
Python Interpreter Loaded successfully! :
RxLoaderG26.0.grx successfully loaded.

I guess I should try to update

[CEXT-Dan]

Build 251031 is the only version I can download from their website.

[hs0wkc]

I download from https://www.gstarcad.com.my/download-gstarcad2026

[CEXT-Dan]

There is a new SDK though. would you like me to try to compile against the latest SDK?
Typically, I try to avoid this as it might break current users, but maybe it's necessary
Also, if you have the dump file, that might be helpful

grxsdk for Gcad release ----- 20250327  <---- we’re using this one
grxsdk for Gcad release ----- 20251028

[CEXT-Dan]

I made a build with the new sdk, in e623dd7

[hs0wkc]

I try to replaced PyRxG26.0.grx and RxLoaderG26.0.grx from e623dd7
but not work. This dump file after replaced *.grx.
GcMiniLog_V26_2_1_0_D2026012322(9).dmp

[CEXT-Dan]

I see, Malaysia reseller has newer builds and a newer SDKs than the official site, apparently there’s a break in compatibility.

[CEXT-Dan]

I installed GSTARCAD2026 Build 260123 from the Malaysia site and PyRx loaded fine. Unit test passes

The dump shows there’s a command in progress at the time of the exception. Are you doing anything else besides loading? Are you using pyrx_onload? I’m the meantime, I will make a new build with the newer SDK

call stack

gccore!gcedIsNamedDrawing+0xd6f
gccore!gcedIsNamedDrawing+0x1c37
gccore!gcedCommandC+0xe1a
gccore!gcedCommandC+0x206e
KERNELBASE!BaseFiberStart+0x20
ntdll!RtlUserFiberStart+0x19

[CEXT-Dan]

9d4fbf6
build for 260123

[CEXT-Dan]

I added a new build for 260123. I think the issue must be something else though.
I know there an issue with wxPython when closing GSTARCad, I’ve been working with wxWidgets team to solve this. This is specific to XML library though.

[hs0wkc]

I replaced PyRxG26.0.grx and RxLoaderG26.0.grx from 9d4fbf6 to c:...\AppData\Local\Programs\Python\Python312\Lib\site-packages\pyrx
and set start suite in GSATRCAD to c:...\AppData\Local\Programs\Python\Python312\Lib\site-packages\pyrx\RxLoaderG26.grx
Now, GstarCAD start as normally. But pyLoad command not show. It has only PYRXLOADENV and PYRXLOADLOG.

What's process that I'm mistake?
Or Must be upgrade from pip?

[CEXT-Dan]

• remove RxLoaderG26.grx from the startup stuite
• close CAD
• use appload command, and load RxLoaderG26.grx

this way you can see how it loads at the command line

[hs0wkc]

I done as previous comment.

But no pyLoad commamd or pyReload.

[CEXT-Dan]

Seems it did not load correctly, otherwise it would show the PyRx version.

[hs0wkc]

[hs0wkc]

Maybe mistake only my computer on;y because I run on Test Computer that used to test many function.

on Work Computer
GStarCAD 2025 BUILD 250320
Python 3.12.1
cad-pyrx 2.2.41.5071
wxPython 4.2.4
It's work fine.

[CEXT-Dan]

try
use appload command, and load RxLoaderG26.grx
use appload command, and load PyRxG26.0.grx

[hs0wkc]

[CEXT-Dan]

I'll make a fresh build

[CEXT-Dan]

I committed a fresh build, some things to try

Uninstall PyRx, and install from the repository
python -m pip install git+https://github.com/CEXT-Dan/PyRx.git

Another option it to reinstall PyRx, pip install cad-pyrx --force-reinstall
And try using the version at https://www.gstarcad.net/

Some things to try. If you’re running an old operating system, maybe sure you have C++ runtime

[hs0wkc]

I decided to change new computer to test.
First, in new computer, I test in sandbox with GSTARCAD 2025+cad-pyrx 2.2.41.5071. PyRX can load RxLoaderG26.grx but pyLoad command not show. I try to install VC_redist.x64.exe. Then restart GSTARCAD and PyRX. This program run normally.

After that I upgrade cad-pyrx to 2.2.47.5305, Then restart GSTARCAD and PyRX. This program run normally.
In sandbox, I install GSTARCAD 2026 BUILD 260123. GSTARCAD and PyRX 2.2.47.5305 run normally.

Finally, I think the old computer may be problem. (I try to install VC_redist.x64.exe but not work)
Thank You, for your fast support.

[CEXT-Dan]

Ok, I just got finished with sandbox also lol!
GSTARCAD 2026 BUILD 260123. GSTARCAD and PyRX 2.2.47.5305

[CEXT-Dan]

I plan on using the newer SDK for the next release https://www.gstarcad.com.my/download-gstarcad2026 BUILD 2026.01..23
Do you think that is okay?

I don't know why the main website does not have the updates, I would rather support the reseller in Malaysia.
My reseller in Singapore has never updated the page. I would rather support the reseller that puts the work in

[CEXT-Dan]

Re: your older computer
Also I had the module compiled with AVX instruction set for performance, maybe that’s too aggressive, the next release will just be SSE2

[CEXT-Dan]

Added cad-pyrx 2.2.48.5317 to PyPi Please test at your convenience
GstarCad users, this build targets Build 260123, GRX SDK 2026.01..23 and lowered the hardware requirements to SSE2

[hs0wkc]

Come back to old computer, MS SurfaceGo, Intel Pentium.
I try to install cad-pyrx 2.2.48.5317, GSTARCAD 2026 run normally.
Then uninstall and force to install cad-pyrx 2.2.47.5305, GSTARCAD 2026 hang and exit.

Maybe this problem come from AVX instruction as you mention.

[CEXT-Dan]

Great, thanks for testing! The change should have minimal impact since the project is 99% wrappers, just forwarding calls between Python and CAD.