Fail to load large PTU file

[XUShengyan]

Hello, I test three PTU files (>2GB, export from SP8), but fail to load at the first step:
data = tttrlib.TTTR(filename, 'PTU')
In the console, it showed that 'Process finished with exit code -1073741819 (0xC0000005)'
I think is not a python environment problem. Because everything works well, if I use smaller PTU files (<500MB). Also works for calculating the intensity images after that.

My environment is Win 10, python 3.7(Anaconda & Pycharm), tttrlib 0.0.19, with 128GB RAM

It would be great if you could give me any suggestions for this situation!

[tpeulen]

Indeed there could be a memory issue. Can you provide me a test file? You send me an email with a link of the file? Alternatively, I can provide you (per mail) an upload link for the file(s).