Cannot see `Out` prompt in REPL in v1.9.0-rc1 after setting code in startup.jl

[singularitti]

I put the following lines in my startup.jl as suggested in #46474 and docs but I do not see Out[1] printed:

using REPL
atreplinit() do repl
    if !isdefined(repl, :interface)
        repl.interface = REPL.setup_interface(repl)
    end
    REPL.ipython_mode!(repl)
end

It turns out that I have the following lines also in my startup.jl and they change how prompt is displayed:

using OhMyREPL
colorscheme!("Monokai16")
enable_autocomplete_brackets(false)

Could this be avoided @KristofferC? I want to have them both in my startup.jl.

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Originally from https://github.com/JuliaLang/julia/issues/48945