Error during distributed mapslices on GDAL (vrt) cube

Hi all,
I've tried to apply a simple function (mean over time) to a GDAL based cube and got the following error:

stat = mapslices(cube_mean, cube, dims="Time")

 From worker 3:    Error during running loop: GDAL.GDALError(GDAL.CE_Failure, 10, "Pointer 'hDS' is NULL in 'GDALDatasetRasterIOEx'.\n")
      From worker 5:    Error during running loop: GDAL.GDALError(GDAL.CE_Failure, 10, "Pointer 'hDS' is NULL in 'GDALDatasetRasterIOEx'.\n")
      From worker 2:    Error during running loop: GDAL.GDALError(GDAL.CE_Failure, 10, "Pointer 'hDS' is NULL in 'GDALDatasetRasterIOEx'.\n")
      From worker 4:    Error during running loop: GDAL.GDALError(GDAL.CE_Failure, 10, "Pointer 'hDS' is NULL in 'GDALDatasetRasterIOEx'.\n")ERROR: 
GDALError (CE_Failure, code 10):
        Pointer 'hDS' is NULL in 'GDALDatasetRasterIOEx'.


Stacktrace:
 [1] runLoop(dc::YAXArrays.DAT.DATConfig{1, 1}, showprog::Bool)
   @ YAXArrays.DAT ~/.julia/packages/YAXArrays/HzZlX/src/DAT/DAT.jl:638
 [2] mapCube(::typeof(cube_mean), ::Tuple{YAXArray{UInt16, 3, ArchGDAL.RasterDataset{UInt16, ArchGDAL.IDataset}, Vector{CubeAxis}}}; max_cache::Float64, indims::InDims, outdims::OutDims, inplace::Bool, ispar::Bool, debug::Bool, include_loopvars::Bool, showprog::Bool, nthreads::Dict{Int64, Int64}, loopchunksize::Dict{Any, Any}, kwargs::Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
   @ YAXArrays.DAT ~/.julia/packages/YAXArrays/HzZlX/src/DAT/DAT.jl:423
 [3] #mapCube#40
   @ ~/.julia/packages/YAXArrays/HzZlX/src/DAT/DAT.jl:270 [inlined]
 [4] #mapslices#54
   @ ~/.julia/packages/YAXArrays/HzZlX/src/DAT/DAT.jl:329 [inlined]
 [5] top-level scope
   @ REPL[58]:1

I tried @eval @everywhere cube = $cube but without success.
Any ideas if that can be fixed easily?

Thanks for your work and best regards!
Björn

Start with the runLoop and mapCube entries in YAXArrays.DAT/DAT.jl, especially the stack-trace locations around lines 638 and 423, and reproduce mapslices(cube_mean, cube, dims="Time") on the GDAL VRT cube. Investigate why distributed workers reach GDALDatasetRasterIOEx with a NULL hDS; done means the distributed mapslices call completes without that error.