This resolution is applicable for Sage 100 versions 2014 PU7, 2015 PU3 and 2016:

1. Open Payroll, ACA, ACA Employer Maintenance
2. Select 2015 tax year
3. In the ACA Forms to Use field, select 1095/1094-B forms and then reselect 1095/1094-C forms or visa versa
4. Click Accept
5. Rerun the appropriate1095 form, click No if prompted to use your Work in Progress

See knowledgebase article 71843