Hi! I've used jdk1.8.0_201 to HeapDumpOnOutOfMemoryError. -Xmx was set to 3GB, file is 5171319546 bytes. I've tried both 2019.1 b37 and 2019.8 b73.
Why I don't have enough time to claim "it will never open", after an hour I would have expected something more than "Performing final tasks loading the snapshot".