* A [bug in Android 6.0](https://issuetracker.google.com/issues/37068143) causes a crash with *... Invalid offset: ... Valid range is ...* when text is selected and tapping outside of the selected text. This bug has been fixed in Android 6.0.1.
* Internal (anchor) links will not work because original messages are shown in an embedded WebView in a scrolling view (the conversation list). This is an Android limitation which cannot be fixed or worked around.
* Language detection [is not working anymore](https://issuetracker.google.com/issues/173337263) on Pixel devices with (upgraded to?) Android 11
* A [bug in OpenKeychain](https://github.com/open-keychain/open-keychain/issues/2688) causes invalid PGP signatures when using a hardware token.
* ~~A [bug in OpenKeychain](https://github.com/open-keychain/open-keychain/issues/2688) causes invalid PGP signatures when using a hardware token.~~
* Search suggestions causes the keyboard losing focus on Android 12L.
* ~~[A bug](https://techcommunity.microsoft.com/t5/outlook/outlook-office-365-imap-idle-is-broken/m-p/3616242) in the Outlook IMAP server causes delayed new message notifications.~~
* Updating the Material You colors sometimes require restarting the app / the device, which is caused by [a bug](https://issuetracker.google.com/issues/386671298) in the Android WebView.
<li>A <ahref="https://issuetracker.google.com/issues/37068143">bug in Android 6.0</a> causes a crash with <em>… Invalid offset: … Valid range is …</em> when text is selected and tapping outside of the selected text. This bug has been fixed in Android 6.0.1.</li>
<li>Internal (anchor) links will not work because original messages are shown in an embedded WebView in a scrolling view (the conversation list). This is an Android limitation which cannot be fixed or worked around.</li>
<li>Language detection <ahref="https://issuetracker.google.com/issues/173337263">is not working anymore</a> on Pixel devices with (upgraded to?) Android 11</li>
<li>A <ahref="https://github.com/open-keychain/open-keychain/issues/2688">bug in OpenKeychain</a> causes invalid PGP signatures when using a hardware token.</li>
<li><del>A <ahref="https://github.com/open-keychain/open-keychain/issues/2688">bug in OpenKeychain</a> causes invalid PGP signatures when using a hardware token.</del></li>
<li>Search suggestions causes the keyboard losing focus on Android 12L.</li>
<li><del><ahref="https://techcommunity.microsoft.com/t5/outlook/outlook-office-365-imap-idle-is-broken/m-p/3616242">A bug</a> in the Outlook IMAP server causes delayed new message notifications.</del></li>
<li>Updating the Material You colors sometimes require restarting the app / the device, which is caused by <ahref="https://issuetracker.google.com/issues/386671298">a bug</a> in the Android WebView.</li>