Out of control memory leak?

Every time I start Amicable Numbers up to 10^21 3.02 (opencl_amd) it rapidly consumes all of my 16GB of RAM in Win10.

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"The surest sign that intelligent life exists elsewhere in the universe is that it has never tried to contact us."
- Calvin and Hobbes (Bill Patterson)

I've got 64GB of RAM free and I think I'm seeing the same or similar error: "-1073741819 (0xC0000005) STATUS_ACCESS_VIOLATION". With Ralph@home, it reported the error as insufficient memory, but that was when the entire 128 out of 128GB were being used. Now it's got half available, and it really shouldn't be an issue for Amicable tasks; the tasks are failing at 0.00 seconds of CPU time, according to the Amicable results page.