What I am referring to is MapleTA, not the maple package (mapleTA). Perhaps you do not use the program and hence really fail to understand.
Essentially MapleTA is an online assessment tool that uses the maple CAS to evaluate certain things. Some of the programming requires a call out to a server running maple.
On my local machine I have never had a problem running the script and it sounds like you have not either. However when MapleTA calls out to the server to evaluate the code it only produces a single root (for actually the majority of randomizations).
If you have Maple TA attempt to creat a question with the above code, and I assure you your algorithmic preview will produce one root the majority of times, which is very problematic and signs of a bug in MapleTA (which is different than the package mapleTA within maple).