I’ve the same problem here.
I tried to increase memory limit up to 1 GB, but it doesn’t affect the number of post loaded.
I also tried to increase the other variables, like post_max_size but none of them works. While the max_execution_time is set to 120.
The plugin stops to work after approximately 15/20 seconds and retuns a blank page, instead the number of articles imported is variable (range from 2 to 5)
