The Advanced template that appears in Connect v3.3.51 has a bug in the data validation for the bind::type column. The data validation cell references are off by two, probably due to some insertion on types sheet. The first image below show the issue. The second shows the root cause. The third shows the cells referenced in the second one. You can see that cell A182 (1) should not appear in the dropdown.
Source in the data validation window should be the following:
=types!$A$185:$A$190
Hi Elliott,
Thanks! The validation range will be fixed in the next release of Survey123.