A user inserted data into a feed with a channel name of 0.25 (but, a string, not a number). When calling info, like this:
../bin/info . -r 4369 --prefix feed_5609
The newly-added channel is not returned. However, when calling info for all feeds for user 4369, like this:
../bin/info . -r 4369
Then the channel is returned.
It appears to only happen when the channel begins with a number. That is, trying the same with a channel name of xxx.yyy or count0.25 worked as expected.