# On OS X Catalina, running 'solve' in DifferentialEquations causes crash

**URL:** <https://discourse.julialang.org/t/on-os-x-catalina-running-solve-in-differentialequations-causes-crash/42109>\
**Category:** General Usage\
**Created:** [June 26, 2020, 2:45pm UTC](https://discourse.julialang.org/t/on-os-x-catalina-running-solve-in-differentialequations-causes-crash/42109 "2020-06-26T14:45:46Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![Elrod](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/elrod/32/22461_2.png) [@Elrod](https://discourse.julialang.org/u/Elrod)\
**Post date:** [June 26, 2020, 9:04pm UTC](https://discourse.julialang.org/t/on-os-x-catalina-running-solve-in-differentialequations-causes-crash/42109/12 "2020-06-26T21:04:54Z")

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VectorizationBase v0.12.13 has been released. It should solve the problem. There was a bug in this check:

> [@Elrod](#):
>
> I’ll make it a later release to also add a check for if they aren’t using the usual LLVM

that is now fixed.

That said, the Julia nightly should have better on those still solvers, as LLVM should be able to use AVX512 instructions there.

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