In response to my query in re: searching, I received a response from the Lifebirds Journal developers in which they acknowledge that the issue that I am experiencing is a known issue. However, they state that it is due to a bug in IOS 8 whereby, rather than seeing the expected search results displayed on the screen, they actually scroll off the top of the screen. This, then, accounts for the blank page I experienced.
The solution is to a) pull down the results page, or b) go back to the main menu and perform the search again, as the bug does not appear all the time (which is the interesting part).
They are working either to have Apple resolve the issue directly in IOS, or to find a way to work around it in their software.
Many thanks to the developers for the prompt response (and follow on updates).
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