For me, this issue only happens when I’ve already created an AE comp and I import it into Premiere. If that’s the case for you too, the workaround is to create a new AE comp from inside Premiere (File>Adobe Dynamic Link>New After Effects Composition). Then in AE, just plop your existing comp (now a precomp) into the comp you just created from Premiere. For some reason, Premiere maintains the Dynamic Link to this comp better, so when you make changes to your existing comp in AE, they update in Premiere as they should. Hope this helps!