Just experience a few crashes today using the Hotstart 650, version 1.8. The first two, I loaded up the plane from cold and dark. The sim always crashed when the IRS aligned. This happens to coincide with the PFD's SVS turning on. I tried uninstalling using the uninstaller, then reinstalling from scratch. The flight was going well until I tried adjusting the PFD settings. I turned SVS back on and the sim crashed less than a second later.
Here's the relevant section of the x-plane log.
1:05:46.240 E/GFX/VK: Failed to allocate from memory index. Requirements: { 256 (256.00 b), 256, ffffffff }
1:05:46.240 E/GFX/VK: Used memory type index: 5 (VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT|VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT|VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)
1:05:46.240 E/GFX/VK: Memory heap Usage: 213.32 mb (223681984 bytes). Budget: 704.00 kb (720896 bytes)
1:05:46.240 E/GFX/VK: Encountered error: VK_ERROR_OUT_OF_DEVICE_MEMORY
...
--=={This application has crashed because of the plugin: Challenger 650 by Hot Start}==--
Log.txt