Sorry for delay. Having reenabled gatekeeper;
spctl -va /Applications/OpenLP.app/ results in bouncing app icon and returns:
<p class="p1" style="font-family: Arial, Verdana; font-size: 10pt; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">localhost:~ Joe$ spctl -va /Applications/OpenLP.app/</p>
<p class="p1" style="font-family: Arial, Verdana; font-size: 10pt; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">/Applications/OpenLP.app/: invalid Info.plist (plist or signature have been modified)</p><p class="p1" style="font-family: Arial, Verdana; font-size: 10pt; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;"><br></p><p class="p1" style="font-family: Arial, Verdana; font-size: 10pt; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">spctl --list returns:</p><p class="p1"><font face="Arial, Verdana" size="2">http://pastebin.com/pnCWQu1X</font></p><p class="p1"><font face="Arial, Verdana" size="2"><br></font></p><p class="p1">ls -l /Applications/OpenLP.app/Contents/ returns:</p><p class="p1">total 16</p><p class="p1">drwxr-xr-x@ 2 Joe admin 68 2 Feb 12:50 Frameworks</p><p class="p1">-rw-r--r--@ 1 Joe admin 4976 2 Feb 12:50 Info.plist</p><p class="p1">drwxr-xr-x@ 144 Joe admin 4896 2 Feb 12:50 MacOS</p><p class="p1">
</p><p class="p1">drwxr-xr-x@ 5 Joe admin 170 2 Feb 12:50 Resources</p><p class="p1"><br></p><p class="p1"><br></p><p class="p1">That ok?</p><p class="p1" style="font-family: Arial, Verdana; font-size: 10pt; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;"><br></p><p class="p1" style="font-family: Arial, Verdana; font-size: 10pt; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;"><br></p><p class="p1" style="font-family: Arial, Verdana; font-size: 10pt; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;"><br></p>