I saw this, but I just don't want to abandon this feature as my modpack always uses one trillion years to start jei when I enter my world.
Can I use "mixin.perf.async_jei=true" in modernfix-mixins.properties to override this?

Besides, I'm also a Modern UI user that can't leave it, but I have NEVER crashed with it (and with ModernFix since it first released at Jan 5, 2023) in my 300+ mods' modpack. My modpack don't have a need for strongholds and I have disabled them a long time ago so I can't tell anything with this. But A0000Xz is surely using a old version of Modern UI (here) and it must have bug(s). So I wonder if you could think about it again, should we really abandon "mixin.perf.async_jei" for an older version of Modern UI?

Modern UI can also disable its tooltip type in its config

Can I use "mixin.perf.async_jei=true" in modernfix-mixins.properties to override this?

Yes, that should work.

So I wonder if you could think about it again, should we really abandon "mixin.perf.async_jei" for an older version of Modern UI?

Note that Modern UI causes other non-fatal problems too (such as the issue with JEI taking 4 minutes to start in the background due to how it forces tooltip processing to happen on the main thread). That issue can be worked around by turning off tooltip search in the JEI config but there are probably other issues I'm not aware of. This is why I opted to disable it by default.

If that option is disabled then you could probably re-enable async JEI without problems. But I would prefer to leave it disabled by default as experienced users would be more likely to know which configs to tweak.

ok, thank you!