Xfinity Stream does not pause

I use Xfinity Stream on an LG C3 that was running WebOS 24, recently upgraded to 25 with this same problem. When watching a recorded show and wishing to pause pressing the pause button (select/ok button in the middle) will cause a slow fast forward that I don't notice since it advances forward so slowly, resulting in the program skipping ahead while I'm away. Rarely does it actually pause, but sometimes it does, adding to the confusion. Also, sometimes it will do something else: pressing the pause, and then fast forward causes the program to jump back to the end of the last commercial and repeat the just viewed content of the show. My only recourse is to go into high speed fast forward until I get beyond the commercial I had just tried to skip and continue playback. This action trying to continue playback, however, has caused an Unable to Play content error. This bug has been present for possibly a month or so now, perhaps longer. WebOS 24 had it, and continues with WebOS25 recently installed. I should emphasize that this bug is only present with programs where commercial skip is available. Hope you can fix it.