In our case, the login problem arises only with ArcGIS Enterprise 10.9.1 when using Android OS and the Field Maps app version 25.2.0 or higher (including 25.2.3). I also tested it against ArcGIS Enterprise 11.2, and the login problem did not occur.
When we use Field Maps version 25.1.0, everything works fine!
BUG-000179817 seems to be still reproduced in Field Maps 25.2.3 on Android.
I just tested with a Map Image Layer containing a group layer with two layers, configured the search by layer on one layer. Works fine in the webmap, no result in Field Maps.
@MiaogengZhang that url you provided 404's. I have users experiencing similar issues through our MDM provider, but are able to successfully access field maps on their personal devices. I have a support case open.
@PaulCone2 - Are your users working from the online map, offline areas (adhoc or preplanned), MMPK and/or in scenarios where they are in low connectivity or possibly completely disconnected?
@PiyaliKundu2 map is online. We resolved our issue by making a change on our end. Our locator is custom code that mimics an Esri locator, and it seems that with this update to FieldMaps it is being more discriminating about its interactions with our locator than a standard map is. So, we had to update the API key checking that we do to work around your app update and allow it to geocode without a key.
I am the Group Product Engineering Lead for our Field Apps team at Esri. I work with an amazing team building out our field solutions.
Please feel free to ask me anything about ArcGIS Field Maps, Workforce, and Navigator.