Hi all first post here. More of a question then a concern. I just installed some chimney pipe today Selkirk double wall (6DCC-TS5-BK) into the ceiling box and attached the class A pipe by Selkirk (6TLC48). Everything went smooth. Attached the first class A pipe to the ceiling box secured it in place and felt it lock I to place. My concern is that I can keep spinning the pipe in the adaptor in the ceiling box. I just want to make sure I am safe and my house won’t burn down. I tried to pull on the pipe and it is tight in place just will spine on the adaptor. I will post pictures below. Any help would be great if anyone has run this not this issue.