Connection problem - seems to be caused by crash during Nether Portal transit

Started happening occasionally on v0.16.0, but is now happening most of the time (but not always) with v0.16.1. When I try to join the Realms, it goes through the connection dialogs as normal. But once it connects, no display pops up. The slowly panning background image is all I can see. Hitting Esc several times flashes the menu buttons, but they have no text and disappear before I can click on them.

The game appears to be connected. As in, one time when it did allow me to connect, I didn't seem to be in the same location I'd been when I logged off, as if the keystrokes I'd submitted earlier had been received.

May or may not be related - twice it's crashed when going through Nether portals. The display problem seems to be when my location is in or near a Nether portal. But that may be just a coincidence.

None of the open issues appear to be similar to this, but sorry if I missed one.