source master concatenation fails when ncov data source is included

[lenzai]

Before

={
importrange("https://docs.google.com/spreadsheets/d/1y8Gl-ldiY47pXlI2toIPaRBUjAiikb_ytaKIvK1rAdU/edit", "squashed_detail_data!A2:I");
importrange("https://docs.google.com/spreadsheets/d/1y8Gl-ldiY47pXlI2toIPaRBUjAiikb_ytaKIvK1rAdU/edit", "squashed_data!A2:I");
importrange("https://docs.google.com/spreadsheets/d/1TDHWWHMnnYvzngE4PIdl0MEmpEtlBJZ8t0yYvdynY4c/edit", "squashed_data!A2:I");
importrange("https://docs.google.com/spreadsheets/d/1o__HVkXc64mg7O66lvyXufYq4-mfK7n71PUq3u-d4w4/edit", "squashed_detail_data!A2:I");
importrange("https://docs.google.com/spreadsheets/d/1o__HVkXc64mg7O66lvyXufYq4-mfK7n71PUq3u-d4w4/edit", "squashed_data!A2:I");
importrange("https://docs.google.com/spreadsheets/d/1djrIgbtH-CVGfIQ-bNGU
Yy2w0H7d2hz3q4FP9dqVbx4/edit", "squashed_detail_data!A2:I");
importrange("https://docs.google.com/spreadsheets/d/1djrIgbtH-CVGfIQ-bNGU
Yy2w0H7d2hz3q4FP9dqVbx4/edit", "squashed_data!A2:I")
}

After

={
importrange("https://docs.google.com/spreadsheets/d/1y8Gl-ldiY47pXlI2toIPaRBUjAiikb_ytaKIvK1rAdU/edit", "squashed_detail_data!A2:I");
importrange("https://docs.google.com/spreadsheets/d/1y8Gl-ldiY47pXlI2toIPaRBUjAiikb_ytaKIvK1rAdU/edit", "squashed_data!A2:I");
importrange("https://docs.google.com/spreadsheets/d/1TDHWWHMnnYvzngE4PIdl0MEmpEtlBJZ8t0yYvdynY4c/edit", "squashed_data!A2:I");
importrange("https://docs.google.com/spreadsheets/d/1o__HVkXc64mg7O66lvyXufYq4-mfK7n71PUq3u-d4w4/edit", "squashed_detail_data!A2:I");
importrange("https://docs.google.com/spreadsheets/d/1o__HVkXc64mg7O66lvyXufYq4-mfK7n71PUq3u-d4w4/edit", "squashed_data!A2:I");
importrange("https://docs.google.com/spreadsheets/d/1djrIgbtH-CVGfIQ-bNGUYy2w0H7d2hz3q4FP9dqVbx4/edit", "squashed_detail_data!A2:I")
}