Tabs do not show up if a field is shown on top level

[VxTedxV]

Tabs not displaying at all, group boxes not always. Maybe helpful to investigate with #574...

Reproduction Steps:

case 1 : Create a form with tabs
case 2 : Create a form with tabs containing group boxes (screenshots below)
case 3 : Create a form with group boxes only

Observed behavior:

case 1 : no tab shown
case 2 : no tab shown, but group box OK
case 3 : no group box shown

note : maximized attribute form parameter doesn't matter ; portrait or landscape mode either

Screenshots and GIFs

case 2 :

QGis version: 3.6.0
QField version: 1.5.3 (010503991)

Additional information:

• Problem started happening recently, didn't happen in an older version of QField: Don't know but I saw screenshots of other users with tabs working
• Problem can be reliably reproduced, doesn't happen randomly: Yes
• Problem happens with all files and projects, not only some files or projects: not tried

[signedav]

Thanks for reporting.
Top level groups are displayed in QField as Tabs.
Obviously on your system, the tabs are the problem.
I cannot reproduce it. Maybe because the configuration on QGIS 3.6 are not compatible with QField using QGIS > 3.14 ?
Can you quickly test, if on a later QGIS version you have the same issue @VxTedxV ?

[label-actions]

Thanks for reporting this bug. Bugs are often fixed on a voluntary basis (see sustainability initiative). This still often takes time and we need to prioritize bugs, so some may slip through the cracks. If you need this bug to be fixed in a more timely manner, get in touch.

[VxTedxV]

3.14 is not out yet on QGis.org ;)
Tried from my project under QGis 3.12.1, same behavior.
Tried from a new project under QGis 3.12.1, same behavior.
All my tests done on Windows 8.1
:(

[m-kuhn]

Tabs are incompatible with toplevel fields ("nom tronçon" in your case).

[VxTedxV]

Thanks. A new test confirm that.