After connecting to an Excel file and then changing the type of a field from, for example, Numeric to String, Tableau Prep Builder cannot assign the correct collation to this field. The missing collation causes an error to be thrown "ERROR: collation mismatch, use COLLATE statements to resolve". Likewise, if the field was used in an aggregation, a remapping operation or a join.

When running a flow to output a local .csv file, the following error occurs
"ERROR: collation mismatch, use COLLATE statements to resolve".

Hyper file, created under temp folder, is not removed after closing Prep and eventually impact OS disk usage.

Grouping values containing foreign characters causes Tableau Prep to crash.

Converting a field to String and using this field in an inner join leads to collation mismatch error on Output.

Cannot export a Tableau Prep workflow to a .hyper file. Getting error: "Failure evaluating to database: Error: collation mismatch, use COLLATE statements to resolve".

When using "" characters in custom SQL with Tableau Prep 2018.3.1, the custom SQL displays additional "" characters.

Tableau Prep crashes with error “Group and Replace column intermediate field missing”, after renaming calculated field that was subsequently grouped and replaced.

System error received, when executing flow with input wildcard union + column data type change + union.

Using Group and Replace changes on field created by calculation in Tableau Prep Builder removes all data.

When removing a field from an aggregate step, a "Error in aggregation step .... Unknown field" error occurred.