There are several synonyms for the term "re issues". One of the most common is "reoccurring problems". This phrase is used to describe issues that tend to happen repeatedly over time. Another synonym is "recurrences", which is often used in medical contexts to describe the return of a health problem after it has been treated. "Relapses" is another term used in medical contexts to describe the return of a condition or illness. "Repeated difficulties" is a more general term that can be used to describe any kind of problem that comes up more than once. Finally, "resurfacing issues" is a phrase that highlights the idea of problems coming back again, often after a period of time where they seemed to be resolved.