PureRAW4 stalls after running once

Every time I run PureRAW from Lightroom it takes much longer to process an image. First time takes 20 seconds, second time several minutes, third time, I need to abort. It just sits there , no CPU used, alternating with 100% GPU used by File Saving process and no GPU at all (stalled)
Sometimes exiting and running LR again, corrects the problem

Windows 10

DirectX version: 12.0
GPU processor: NVIDIA GeForce GTX 1660 SUPER
Driver version: 551.61
Driver Type: DCH
Direct3D feature level: 12_1
CUDA Cores: 1408
Core clock: 1830 MHz
Memory data rate: 14.00 Gbps
Memory interface: 192-bit
Memory bandwidth: 336.05 GB/s
Total available graphics memory: 22484 MB
Dedicated video memory: 6144 MB GDDR6
System video memory: 0 MB
Shared system memory: 16340 MB
Video BIOS version: 90.16.4D.00.73
IRQ: Not used
Bus: PCI Express x16 Gen3
Device Id: 10DE 21C4 40131458
Part Number: G161 0026


nvui.dll NVIDIA User Experience Driver Component
nvxdplcy.dll NVIDIA User Experience Driver Component
nvxdbat.dll NVIDIA User Experience Driver Component
nvxdapix.dll NVIDIA User Experience Driver Component
NVCPL.DLL NVIDIA User Experience Driver Component
nvCplUIR.dll 8.1.940.0 NVIDIA Control Panel
nvCplUI.exe 8.1.940.0 NVIDIA Control Panel
nvWSSR.dll NVIDIA Workstation Server
nvWSS.dll NVIDIA Workstation Server
nvViTvSR.dll NVIDIA Video Server
nvViTvS.dll NVIDIA Video Server
nvLicensingS.dll NVIDIA Licensing Server
nvDevToolSR.dll NVIDIA Licensing Server
nvDevToolS.dll NVIDIA 3D Settings Server
nvDispSR.dll NVIDIA Display Server
nvDispS.dll NVIDIA Display Server
PhysX 09.21.0713 NVIDIA PhysX
NVCUDA64.DLL NVIDIA CUDA 12.4.89 driver
nvGameSR.dll NVIDIA 3D Settings Server
nvGameS.dll NVIDIA 3D Settings Server

I’m experiencing a similar issue with the standalone version. After installing, the application launches once and, after closing it, does not start again. Only way to use it is to re-install which is pretty annoying. Am running it on macOS Sonoma 14.3.1.
Anyone else experiencing the same issue?

I have same issues as madeinlisboa.
I have a Windows10 desktop, Intel Core i7-8700 CPU @ 3.20GHz, 32 GB RAM, Nvidia GTX 1650 GPU. Operating system and programs on Samsung SSD.
This works fine for PR2.