Hubitat hub variable filled with google sheet cell using api do not return the entire cell content

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thanks for reply!
Yes, I use the maker api from inside the hub. Here the link to the step I followed to make it work

Its working fine, but I just dont understand why sometimes the cell content is not fully sent to the variable. (even if I try multiple time)
The cell content is generate with a simple concat formula.
Its almost all I can tell,
thanks again!