3.0 just came out last night - if your gallery is still working can you use apkextractor to grab the APK for those of us that have already updated?
You can grab it on the play store (https://play.google.com/store/apps/details?id=com.ext.ui)
Then launch it, select LeiaPlayer - it will extract a .apk file to your internal memory (ExtractedAPKs folder) -- if you can share it here it would be nice for everyone to have