For some unknown reason OS Streetview is not displaying anything in JOSM when I select it as an imagery layer. Literally noting comes up - there is a blank white background - when I select it. It has always worked before and all other layers work as normal. It worked a few weeks ago and has not worked, so far as I can tell, for the last few days. I updated to the latest version of JOSM to no avail. Anyone know what the problem is?
You can set JOSM to use the temporary server that Grant mentions in that message. In JOSM, go to Imagery menu, then Imagery Preferences. Then add another entry for OS Streetview, with the imagery URL: