A workaround exists to use transdroid search on recent versions:
Attempt to decrease the number of FCs when starting app on Oreo devices.
External storage: Fix moving completed torrents and fixed creating multiple versions of the same folder.
Use libtorrent 1.1.11.
Fix moving/copying files on external storage with the filebrowser.
Fixed adding files from downloads.
Fixed ip filter downloading.
Fixed downloading rss feeds through http.
From Android Oreo the ongoing notification cannot be disabled, otherwise the system may kill the app.
Fixed parsing magnet links with size information.
Added adaptive launcher icon.(supported from Android Oreo)
Renamed app in the launcher (tTorrent to tTorrent Lite, tTorrent (no ads) to tTorrent).
Implemented runtime permissions, the READ_PHONE_STATE is not needed anymore.
Clear finished notifications when app opened through status notification.
Fix deleting folders recursively with the built in file browser.
Improved file priority and progress report on details screen.
Fixed upload/download limits when uTP enabled.
Fixed moving torrents located on external storage.
Fixed crash when removing/deleting torrents.
Improved crash reporting.
Re-add accidentally removed username setting for web interface.
Adjust file item size/position on details screen.
Update openssl to 1.0.2l.
Add password visibility toggle for password fields in the preferences.
Adjustable file priorities on the details screen between 0-3.
Only for API levels 16-19: fix preferences not working.
Fixed FC in preferences when entering proxy settings.
Improved files tab on details view, folders can be collapsed.
Option to remove torrents after seeding completed.
Enable d-pad support in navigation drawer.
Display country flags for peers on the details screen.
Torrent list can be scrolled when session paused.
Fixed automatic switching of sequential mode.