REDCap v. 8.1.4

• Major bug fix: When downloading the CSV export of a survey's Participant List, a race condition might occur if multiple users are downloading the list (or if multiple requests are coming from the same user) near-simultaneously, in which it could possibly return a Participant List export file that contains Survey Access - Codes that do not really exist and are therefore not valid access codes. (Ticket #34862)
• Bug fix: The setting for "External Modules: Alternate module directories" on the Modules/Services Configuration page in the Control Center did not have clear examples and had confusing instructions.
• Bug fix: The dashboard page in the Randomization module might mistakenly not get rendered correctly and thus may not be viewable if malformed HTML exists in the field label or choice label of the randomization field or a criteria field.
• Bug fix: The "Set up Survey Queue" popup in the Online Designer would mistakenly note that the first survey instrument is not displayed in the popup and therefore cannot be used in the Survey Queue. However, this is no longer true (but was true in earlier versions), so that incorrect text has now been removed.
• Bug fix: For a survey that does not have "Save and Return Later" enabled, if a respondent returns to an incomplete survey response using a unique survey link, it would mistakenly display the "Start Over" button to allow them to erase their answers even if the response had been locked by a user on the data entry form. - Respondents should not be able to modify data or erase data if the form has been locked. This has been changed so that if the response is locked, it will not display the "Start Over" button and will inform the respondent that they cannot do anything until a survey administrator has unlocked their response. (Ticket #34676)
• Bug fix: Fields having any of the "Number (comma as decimal)" validations would mistakenly not have their scatter chart or descriptive stats displayed on the "Stats & Charts" page for a report.
• Bug fix: When copying an instrument via the "Copy" action in the Online Designer, if the instrument contains a "calc" field in which its equation has been left blank, it would display an error stating that the instrument could not be copied.
• Minor security fix: Due to security vulnerabilities found in the Bootstrap 3.3.7 library, Bootstrap has been upgraded to 3.4.0dev, which is the only 3.X version with the fixes.