Google.script.run Fails In Case Of File Input

I have a google apps script bounded to a spreadsheet, and I created a html form to upload csv and excel files to process them and load the data to the spreadsheet. Everything worke

Solution 1:

Meanwhile I found that this is a bug related to the new V8 runtime (https://issuetracker.google.com/issues/149980602)

Maybe I accidentally enabled the new V8 runtime.. (or they automatically enabled it)

So the solution is (until they fix the bug) to disable the V8 runtime or here is a workaround in Tanaike's answer.