Hi Oswaldo - welcome here!
May you put a valid *.fpl file and a invalid *.fpl into a *.zip file and post it here as attachment?
With both valid and invalid files Christian may be able to compare them to solve the issue.
May you put a valid *.fpl file and a invalid *.fpl into a *.zip file and post it here as attachment?
With both valid and invalid files Christian may be able to compare them to solve the issue.
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Matthias
Matthias