First, if it was a company plan, it was not an IRA - it was probably a 401(k) or 401(k) Roth plan. (IRA's are personal retirement accounts held by a bank or financial institution.)
What code was in box 7 on your 1099-R?
Was the IRA/SEP/SIMPLE box checked (or did you check it by mistake).
What was in box 2a?
What tax year was this for? If 2017 was the taxable amount reported on the 1040 form line 16a? Was ROLLOVER printed next to it? (If 2018 that would be line 4 in the 1040 form).
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
