To reproduce:
1. Create a new project;
2. Create a default VFX Graph;
3. Drag it to the scene;
4. Build and run the scene on Android devices with Mali GPU

Results: VFX Graph effects are flickering or not being rendered on Android devices with Mali GPU, crash with Vulkan error being spammed to the log:
06-07 19:02:29.308 13231 13295 D Unity : Vulkan error VK_ERROR_INITIALIZATION_FAILED (-3) file: ./Runtime/GfxDevice/vulkan/ComputeProgramVK.cpp, line: 108
06-07 19:02:29.308 13231 13295 D Unity : Vulkan error./Runtime/GfxDevice/vulkan/ComputeProgramVK.cpp:108
06-07 19:02:29.806 13231 13295 D Unity : #00 0xc45512a0 0xc45512a0 (libunity.so) vk::ComputeProgram::GetOrCreatePipeline(vk::DescriptorState&) 0x374
06-07 19:02:29.806 13231 13295 D Unity : #01 0xc455dfb8 0xc455dfb8 (libunity.so) GfxDeviceVK::DispatchComputeProgram(ObjectHandle<ComputeProgram_Tag, void*>, unsigned int, unsigned int, unsigned int) 0x9c
06-07 19:02:29.806 13231 13295 D Unity : #02 0xc3f347f2 0xc3f347f2 (libunity.so) GfxDeviceWorker::RunCommand(ThreadedStreamBuffer&) 0x45c9
06-07 19:02:29.806 13231 13295 D Unity : #03 0xc3f3727e 0xc3f3727e (libunity.so) GfxDeviceWorker::RunExt(ThreadedStreamBuffer&) 0x31
06-07 19:02:29.806 13231 13295 D Unity : #04 0xc3f37220 0xc3f37220 (libunity.so) GfxDeviceWorker::Run() 0x5b
06-07 19:02:29.806 13231 13295 D Unity : #05 0xc3f2ffe2 0xc3f2ffe2 (libunity.so) GfxDeviceWorker::RunGfxDeviceWorker(void*) 0x1
06-07 19:02:29.806 13231 13295 D Unity : #06 0xc43ac260 0xc43ac260 (libunity.so) Thread::RunThreadWrapper(void*) 0x1df
06-07 19:02:29.806 13231 13295 D Unity : #07 0xe83d8834 0xe83d8834 (libc.so) __pthread_start(void*) 0x13
06-07 19:02:29.806 13231 13295 D Unity : #08 0xe83ab2ae 0xe83ab2ae (libc.so) __start_thread 0x1d

Reproduced with Visual Effects package versions: 6.7.1, 7.0.0

Devices under testing:
Reproduced on:
VLNQA00149, SAMSUNG SM-G960F, Exynos 9 Series 9810, Mali-G72, 9.0.0
VLNQA00006, SAMSUNG SM-G930F, Exynos 8 Octa (8890), Mali-T880, 8.0.0
VLNQA00267, SAMSUNG SM-G975F, Exynos 9 Series 9820, Mali-G76, 9.0.0

Not reproduced on:
VLNQA00150, SAMSUNG SM-G960U, Snapdragon 845 SDM845, Adreno (TM) 630, 8.0.0
VLNQA00263, GOOGLE Pixel 3, Snapdragon 845, Adreno (TM) 630, 9.0.0
VLNQA00027, XIAOMI, MI MAX, Snapdragon 650 MSM8956, Adreno (TM) 510, 7.0.0