I had a client that maintain the CA residency on one 1099R for years, as he got an insurance plan. Unfortunately there was zero income, but that wonderful client  had CA withholding. I filed each year zero income and withholding and always had to respond to correspondence.

In your care it sounds like income is being reported. Talk with the client to get that corrected. If they can get a corrected 1099R for 2018 that will make life easier for both of you. If they can not, you need to decide if AL will come after the client if you do not file.