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

Ok, thanks for letting me know.

julia> using Pkg; Pkg.pkg"st -m"
Status `~/.julia/environments/v1.4/Manifest.toml`
  [c3fe647b] AbstractAlgebra v0.9.2
  [1520ce14] AbstractTrees v0.3.3
  [79e6a3ab] Adapt v1.1.0
  [ec485272] ArnoldiMethod v0.0.4
  [4fba245c] ArrayInterface v2.9.0
  [4c555306] ArrayLayouts v0.2.6
  [aae01518] BandedMatrices v0.15.7
  [6e4b80f9] BenchmarkTools v0.5.0
  [764a87c0] BoundaryValueDiffEq v2.5.0
  [6e34b625] Bzip2_jll v1.0.6+2
  [fa961155] CEnum v0.4.1
  [a603d957] CanonicalTraits v0.2.1
  [d360d2e6] ChainRulesCore v0.8.1
  [35d6a980] ColorSchemes v3.9.0
  [3da002f7] ColorTypes v0.10.4
  [5ae59095] Colors v0.12.2
  [861a8166] Combinatorics v1.0.2
  [bbf7d656] CommonSubexpressions v0.2.0
  [34da2185] Compat v3.12.0
  [e66e0078] CompilerSupportLibraries_jll v0.3.3+0
  [8f4d0f93] Conda v1.4.1
  [88cd18e8] ConsoleProgressMonitor v0.1.2
  [187b0558] ConstructionBase v1.0.0
  [d38c429a] Contour v0.5.3
  [adafc99b] CpuId v0.2.2
  [9a962f9c] DataAPI v1.3.0
  [864edb3b] DataStructures v0.17.19
  [bcd4f6db] DelayDiffEq v5.24.1
  [2b5f629d] DiffEqBase v6.39.1
  [459566f4] DiffEqCallbacks v2.13.3
  [5a0ffddc] DiffEqFinancial v2.4.0
  [c894b116] DiffEqJump v6.9.2
  [77a26b50] DiffEqNoiseProcess v3.11.0
  [055956cb] DiffEqPhysics v3.2.0
  [163ba53b] DiffResults v1.0.2
  [b552c78f] DiffRules v1.0.1
  [0c46a032] DifferentialEquations v6.14.0
  [c619ae07] DimensionalPlotRecipes v1.2.0
  [b4f34e82] Distances v0.8.2
  [ffbed154] DocStringExtensions v0.8.2
  [d4d017d3] ExponentialUtilities v1.7.0
  [c87230d0] FFMPEG v0.3.0
  [b22a6f82] FFMPEG_jll v4.1.0+3
  [1a297f60] FillArrays v0.8.11
  [6a86dc24] FiniteDiff v2.3.2
  [53c48c17] FixedPointNumbers v0.8.1
  [59287772] Formatting v0.4.1
  [f6369f11] ForwardDiff v0.10.10
  [d7e528f0] FreeType2_jll v2.10.1+2
  [559328eb] FriBidi_jll v1.0.5+3
  [069b7b12] FunctionWrappers v1.1.1
  [28b8d3ca] GR v0.50.1
  [6b9d7cbe] GeneralizedGenerated v0.2.4
  [01680d73] GenericSVD v0.3.0
  [4d00f742] GeometryTypes v0.8.3
  [cd3eb016] HTTP v0.8.15
  [7073ff75] IJulia v1.21.2
  [18364772] IPython v0.5.0
  [d25df0c9] Inflate v0.1.2
  [83e8ac13] IniFile v0.5.0
  [42fd0dbc] IterativeSolvers v0.8.4
  [82899510] IteratorInterfaceExtensions v1.0.0
  [682c06a0] JSON v0.21.0
  [b14d175d] JuliaVariables v0.2.0
  [c1c5ebd0] LAME_jll v3.100.0+1
  [929cbde3] LLVM v1.7.0
  [b964fa9f] LaTeXStrings v1.1.0
  [2ee39098] LabelledArrays v1.2.2
  [23fbe1c1] Latexify v0.13.5
  [1d6d02ad] LeftChildRightSiblingTrees v0.1.2
  [dd192d2f] LibVPX_jll v1.8.1+1
  [093fc24a] LightGraphs v1.3.3
  [d3d80556] LineSearches v7.0.1
  [e6f89c97] LoggingExtras v0.4.1
  [bdcacae8] LoopVectorization v0.8.7
  [d00139f3] METIS_jll v5.1.0+4
  [d8e11817] MLStyle v0.3.1
  [1914dd2f] MacroTools v0.5.5
  [739be429] MbedTLS v1.0.2
  [c8ffd9c3] MbedTLS_jll v2.16.6+0
  [442fdcdd] Measures v0.3.1
  [e1d29d7a] Missings v0.4.3
  [961ee093] ModelingToolkit v3.10.2
  [46d2c3a1] MuladdMacro v0.2.2
  [f9640e96] MultiScaleArrays v1.8.1
  [d41bc354] NLSolversBase v7.6.1
  [2774e3e8] NLsolve v4.4.0
  [77ba4419] NaNMath v0.3.3
  [71a1bf82] NameResolution v0.1.3
  [6fe1bfb0] OffsetArrays v1.1.0
  [e7412a2a] Ogg_jll v1.3.4+0
  [4536629a] OpenBLAS_jll v0.3.9+4
  [458c3c95] OpenSSL_jll v1.1.1+4
  [efe28fd5] OpenSpecFun_jll v0.5.3+3
  [91d4177d] Opus_jll v1.3.1+1
  [bac558e1] OrderedCollections v1.2.0
  [1dea7af3] OrdinaryDiffEq v5.41.0
  [65888b18] ParameterizedFunctions v5.3.0
  [d96e819e] Parameters v0.12.1
  [69de0a69] Parsers v1.0.6
  [ccf2f8ad] PlotThemes v2.0.0
  [995b91a9] PlotUtils v1.0.5
  [91a5bcdd] Plots v1.4.3
  [e409e4f3] PoissonRandom v0.4.0
  [8162dcfd] PrettyPrint v0.1.0
  [33c8b6b6] ProgressLogging v0.1.3
  [92933f4c] ProgressMeter v1.3.1
  [438e738f] PyCall v1.91.4
  [e6cf234a] RandomNumbers v1.4.0
  [3cdcf5f2] RecipesBase v1.0.1
  [01d81517] RecipesPipeline v0.1.10
  [731186ca] RecursiveArrayTools v2.5.0
  [f2c3362d] RecursiveFactorization v0.1.2
  [189a3867] Reexport v0.2.0
  [ae029012] Requires v1.0.1
  [ae5879a3] ResettableStacks v1.0.0
  [f2b01f46] Roots v1.0.2
  [21efa798] SIMDPirates v0.8.10
  [476501e8] SLEEFPirates v0.5.1
  [1bc83da4] SafeTestsets v0.0.1
  [992d4aef] Showoff v0.3.1
  [699a6c99] SimpleTraits v0.9.2
  [b85f4697] SoftGlobalScope v1.0.10
  [a2af1166] SortingAlgorithms v0.3.1
  [47a9eef4] SparseDiffTools v1.9.0
  [276daf66] SpecialFunctions v0.10.3
  [90137ffa] StaticArrays v0.12.3
  [2913bbd2] StatsBase v0.33.0
  [9672c7b4] SteadyStateDiffEq v1.5.1
  [789caeaf] StochasticDiffEq v6.20.0
  [bea87d4a] SuiteSparse_jll v5.4.0+8
  [c3572dad] Sundials v4.2.3
  [fb77eaff] Sundials_jll v5.2.0+0
  [d1185830] SymbolicUtils v0.3.4
  [3783bdb8] TableTraits v1.0.0
  [5d786b92] TerminalLoggers v0.1.2
  [a759f4b9] TimerOutputs v0.5.6
  [a2a6695c] TreeViews v0.3.0
  [3a884ed6] UnPack v1.0.1
  [1986cc42] Unitful v1.3.0
  [3d5dd08c] VectorizationBase v0.12.12
  [81def892] VersionParsing v1.2.0
  [19fa3120] VertexSafeGraphs v0.1.2
  [c2297ded] ZMQ v1.2.1
  [8f1865be] ZeroMQ_jll v4.3.2+4
  [83775a58] Zlib_jll v1.2.11+14
  [700de1a5] ZygoteRules v0.2.0
  [0ac62f75] libass_jll v0.14.0+2
  [f638f0a6] libfdk_aac_jll v0.1.6+2
  [f27f6e37] libvorbis_jll v1.3.6+4
  [1270edf5] x264_jll v2019.5.25+2
  [dfaa095f] x265_jll v3.0.0+1
  [2a0f44e3] Base64 
  [ade2ca70] Dates 
  [8bb1440f] DelimitedFiles 
  [8ba89e20] Distributed 
  [7b1f6079] FileWatching 
  [b77e0a4c] InteractiveUtils 
  [76f85450] LibGit2 
  [8f399da3] Libdl 
  [37e2e46d] LinearAlgebra 
  [56ddb016] Logging 
  [d6f4376e] Markdown 
  [a63ad114] Mmap 
  [44cfe95a] Pkg 
  [de0858da] Printf 
  [3fa0cd96] REPL 
  [9a3f8284] Random 
  [ea8e919c] SHA 
  [9e88b42a] Serialization 
  [1a1011a3] SharedArrays 
  [6462fe0b] Sockets 
  [2f01184e] SparseArrays 
  [10745b16] Statistics 
  [4607b0f0] SuiteSparse 
  [8dfed614] Test 
  [cf7118a7] UUIDs 
  [4ec0a83e] Unicode

Yes, that does look better :blush: