JIT direct won't affect uaegfx because it has 100% linear VRAM. (and obviously the very first step is to test without JIT!)
Almost all emulated graphics boards have different "views" to same VRAM (endian swap etc) which are problematic when using JIT direct. JIT can still try too hard to use direct even when it should not be used.
Are you sure your config is same in 32-bit? For example if it has "too much" RAM configured.
winuae2.7z updated, now it has both 32-bit and 64-bit variant, compiled using same config as 4.9.1.
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