Google Stitch fails on one project + duplicate project not working

Hi, I’m seeing a project‑specific issue with Google Stitch.

On one particular project:

  • Every generation fails with
    “Something unexpected happened and Stitch couldn’t complete your generation.”

  • Stitch works fine on new projects

  • I have not hit my credit limit

  • Prompt size or complexity doesn’t matter

Additionally:

  • Duplicating the project also fails

Here is the trace for the failed generation:

Error: gcpolled SessionStatefailedpolled SessionStatefailed
at https://www.gstatic.com/_/mss/boq-pitchfork/_/js/k=boq-pitchfork.Nemo.en_GB.QyT1updWx6I.2018.O/ck=boq-pitchfork.Nemo.qasZj_96URM.L.B1.O/d=1/exm=_b/excm=_b/ed=1/br=1/wt=2/ujg=1/rs=AFTLRif73U_7rohgVIluR4cY0T79-O2-qg/ee=Pjplud:PoEs9b;QGR0gd:Mlhmy;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;YIZmRd:A1yn5d;cEt90b:ws9Tlc;dowIGb:ebZ3mb;lOO0Vd:OTA3Ae;qafBPd:ovKuLd/dti=1/m=oxe1Cc:453:223
at https://www.gstatic.com/_/mss/boq-pitchfork/_/js/k=boq-pitchfork.Nemo.en_GB.QyT1updWx6I.2018.O/ck=boq-pitchfork.Nemo.qasZj_96URM.L.B1.O/d=1/exm=_b/excm=_b/ed=1/br=1/wt=2/ujg=1/rs=AFTLRif73U_7rohgVIluR4cY0T79-O2-qg/ee=Pjplud:PoEs9b;QGR0gd:Mlhmy;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;YIZmRd:A1yn5d;cEt90b:ws9Tlc;dowIGb:ebZ3mb;lOO0Vd:OTA3Ae;qafBPd:ovKuLd/dti=1/m=oxe1Cc:425:512
at Generator.next ()
at https://www.gstatic.com/_/mss/boq-pitchfork/_/js/k=boq-pitchfork.Nemo.en_GB.QyT1updWx6I.2018.O/d=1/excm=_b/ed=1/dg=0/br=1/wt=2/ujg=1/rs=AFTLRicRLqkDCLQqs35_lW472ZrbWteeWw/ee=Pjplud:PoEs9b;QGR0gd:Mlhmy;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;YIZmRd:A1yn5d;cEt90b:ws9Tlc;dowIGb:ebZ3mb;lOO0Vd:OTA3Ae;qafBPd:ovKuLd/dti=1/m=_b:319:193
at new Promise ()
at Bs (https://www.gstatic.com/_/mss/boq-pitchfork/_/js/k=boq-pitchfork.Nemo.en_GB.QyT1updWx6I.2018.O/d=1/excm=_b/ed=1/dg=0/br=1/wt=2/ujg=1/rs=AFTLRicRLqkDCLQqs35_lW472ZrbWteeWw/ee=Pjplud:PoEs9b;QGR0gd:Mlhmy;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;YIZmRd:A1yn5d;cEt90b:ws9Tlc;dowIGb:ebZ3mb;lOO0Vd:OTA3Ae;qafBPd:ovKuLd/dti=1/m=_b:319:86)
at _.I (https://www.gstatic.com/_/mss/boq-pitchfork/_/js/k=boq-pitchfork.Nemo.en_GB.QyT1updWx6I.2018.O/d=1/excm=_b/ed=1/dg=0/br=1/wt=2/ujg=1/rs=AFTLRicRLqkDCLQqs35_lW472ZrbWteeWw/ee=Pjplud:PoEs9b;QGR0gd:Mlhmy;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;YIZmRd:A1yn5d;cEt90b:ws9Tlc;dowIGb:ebZ3mb;lOO0Vd:OTA3Ae;qafBPd:ovKuLd/dti=1/m=_b:319:227)
at sX (https://www.gstatic.com/_/mss/boq-pitchfork/_/js/k=boq-pitchfork.Nemo.en_GB.QyT1updWx6I.2018.O/ck=boq-pitchfork.Nemo.qasZj_96URM.L.B1.O/d=1/exm=_b/excm=_b/ed=1/br=1/wt=2/ujg=1/rs=AFTLRif73U_7rohgVIluR4cY0T79-O2-qg/ee=Pjplud:PoEs9b;QGR0gd:Mlhmy;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;YIZmRd:A1yn5d;cEt90b:ws9Tlc;dowIGb:ebZ3mb;lOO0Vd:OTA3Ae;qafBPd:ovKuLd/dti=1/m=oxe1Cc:425:31)
at _.An. (https://www.gstatic.com/_/mss/boq-pitchfork/_/js/k=boq-pitchfork.Nemo.en_GB.QyT1updWx6I.2018.O/ck=boq-pitchfork.Nemo.qasZj_96URM.L.B1.O/d=1/exm=_b/excm=_b/ed=1/br=1/wt=2/ujg=1/rs=AFTLRif73U_7rohgVIluR4cY0T79-O2-qg/ee=Pjplud:PoEs9b;QGR0gd:Mlhmy;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;YIZmRd:A1yn5d;cEt90b:ws9Tlc;dowIGb:ebZ3mb;lOO0Vd:OTA3Ae;qafBPd:ovKuLd/dti=1/m=oxe1Cc:427:823)
at Vm (https://apis.google.com/_/scs/abc-static/_/js/k=gapi.lb.en.OE6tiwO4KJo.O/m=gapi_iframes/rt=j/sv=1/d=1/ed=1/rs=AHpOoo_Itz6IAL6GO-n8kgAepm47TBsg1Q/cb=gapi.loaded_0?le=scs,fedcm_migration_mod:195:261)

Hey @ananyamb thanks for you comment here, as I have replies to your query in discord already but still I would like to let you know that I have added your issue to our active bug ticket where team is looking at this issue, team rolled a fix for the issue but still persisting. Thanks for this detailed info to investigate more deeply and sorry for the trouble in the meantime!

Thank you for the update and for taking the time to look into this.

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