I felt like the down-brick hotspot was a new bug, and I confirmed that by playing the old web version of the game-- on that, you can be dead-center on the brick and it'll highlight.
... Heheh, while I was IN that OLD WEB version, I noticed that if you walk off-screen without collecting the Rocoulm, then return, the Jibblies painting has already proverbially "poofed to powder"... (Of course, this doesn't happen in the newest version, that's been fix'd.)
But I tested the others on the old web version, and the Inside Bubs' hotspot size is the same, the talking animations post-ladder-descend glitch is present... and I remember that the "meh" speaking without subtitle WAS going on in previous talkie versions. And I'm not sure about the facing-direction w/ Goblin issue, but in the web version, you actually can't trigger Goblin from the X by using an item on it, from what I can see! Likewise, in the web version, you can't use an item on Goblin to trigger his dance. In this new version, any item triggers the X, and any item triggers the Goblin. Which I think is fun! So I'm fairly certain this facing-direction glitch hasn't showed up til' now. Thank you so-so much for caring.