You have to keep clicking the CONTINUE button the number of times for the number of 1099R forms you entered. Like 2, 3 or more. clicks
FAQ for the Continue button not working. You can sign up for updates.
https://ttlc.intuit.com/turbotax-support/en-us/help-article/form-1099-r/nondeductible-contributions-ira-question-repeating/L2eQjh0kU_US_en_US