Gigapixel not completing job

Job gets to around 90% and appears to stop. Up until that point CPU is around 50% for the .exe but when it reaches around 90% complete CPU drops to zero and no further progress is shown on progress bar.
Original image is 337Mb and trying the x2
Laptop has 16Gb RAM, Win 10 Pro, 4 core i7 and 27Gb free space on drive

Hi!

The processing freezing in Gigapixel typically correlates to an underpowered system.

Could you send me the rest of your system information? I’ll need the CPU, GPU, RAM, and VRAM information.

I’ll need to make sure your machine meets the system requirements for Gigapixel.