Console logs:

Some examples of what I got:
warn:legacy.tools:10866:12:linguistic/source/gciterator.cxx:580: !! Grammarchecker failed to provide end of sentence !!
warn:legacy.osl:10866:1:sw/source/core/layout/calcmove.cxx:1926: Only a warning for task 108824:/n<SwCntntFrm::_WouldFit(..) - follow not valid!

lots of these:
warn:legacy.tools:10866:12:linguistic/source/gciterator.cxx:165: lcl_SkipWhiteSpaces: illegal arguments
warn:legacy.osl:10866:1:sw/source/core/layout/atrfrm.cxx:3271: getSdrAllFillAttributesHelper() call only valid for RES_FLYFRMFMT and RES_FRMFMT (!)

bt:
Program received signal SIGSEGV, Segmentation fault.
0x00002aaac6aaaedc in SwFrm::GetType (this=0x9999999999999999) at /home/julien/compile-libreoffice/libreoffice/sw/source/core/inc/frame.hxx:448
448	    sal_uInt16 GetType() const { return 0x1 << mnType; }
(gdb) bt
#0  0x00002aaac6aaaedc in SwFrm::GetType (this=0x9999999999999999) at /home/julien/compile-libreoffice/libreoffice/sw/source/core/inc/frame.hxx:448
#1  0x00002aaac6aaaf22 in SwFrm::IsLayoutFrm (this=0x9999999999999999) at /home/julien/compile-libreoffice/libreoffice/sw/source/core/inc/frame.hxx:1147
#2  0x00002aaac6fc041a in lcl_FormatCntntOfLayoutFrm (pLayFrm=0x56403c0, pLastLowerFrm=0x337af70)
    at /home/julien/compile-libreoffice/libreoffice/sw/source/core/layout/objectformattertxtfrm.cxx:653
#3  0x00002aaac6fc0431 in lcl_FormatCntntOfLayoutFrm (pLayFrm=0x337a530, pLastLowerFrm=0x337af70)
    at /home/julien/compile-libreoffice/libreoffice/sw/source/core/layout/objectformattertxtfrm.cxx:655
#4  0x00002aaac6fc0431 in lcl_FormatCntntOfLayoutFrm (pLayFrm=0x337a390, pLastLowerFrm=0x337af70)
    at /home/julien/compile-libreoffice/libreoffice/sw/source/core/layout/objectformattertxtfrm.cxx:655
#5  0x00002aaac6fc05c6 in SwObjectFormatterTxtFrm::FormatAnchorFrmAndItsPrevs (_rAnchorTxtFrm=...)
    at /home/julien/compile-libreoffice/libreoffice/sw/source/core/layout/objectformattertxtfrm.cxx:709
#6  0x00002aaac6f74a36 in SwFlyAtCntFrm::MakeAll (this=0x4ad6190) at /home/julien/compile-libreoffice/libreoffice/sw/source/core/layout/flycnt.cxx:400
#7  0x00002aaac6f4cb57 in SwFrm::PrepareMake (this=0x4ad6190) at /home/julien/compile-libreoffice/libreoffice/sw/source/core/layout/calcmove.cxx:340
#8  0x00002aaac6f72562 in SwFlyFrm::Calc (this=0x4ad6190) at /home/julien/compile-libreoffice/libreoffice/sw/source/core/layout/fly.cxx:2639
#9  0x00002aaac70274ff in SwFlyFrm::GetCrsrOfst (this=0x4ad6190, pPos=0x7fffffff36c0, rPoint=Point = {...}, pCMS=0x7fffffff3700)
    at /home/julien/compile-libreoffice/libreoffice/sw/source/core/layout/trvlfrm.cxx:551
#10 0x00002aaac7025cf4 in (anonymous namespace)::lcl_GetCrsrOfst_Objects (pPageFrm=0x3379da0, bSearchBackground=false, pPos=0x7fffffff36c0, rPoint=Point = {...}, 
    pCMS=0x7fffffff3700) at /home/julien/compile-libreoffice/libreoffice/sw/source/core/layout/trvlfrm.cxx:87
#11 0x00002aaac702617b in SwPageFrm::GetCrsrOfst (this=0x3379da0, pPos=0x7fffffff36c0, rPoint=Point = {...}, pCMS=0x7fffffff3700, bTestBackground=false)
    at /home/julien/compile-libreoffice/libreoffice/sw/source/core/layout/trvlfrm.cxx:205
#12 0x00002aaac7027121 in SwRootFrm::GetCrsrOfst (this=0x314be50, pPos=0x7fffffff36c0, rPoint=Point = {...}, pCMS=0x7fffffff3700, bTestBackground=false)
    at /home/julien/compile-libreoffice/libreoffice/sw/source/core/layout/trvlfrm.cxx:456
#13 0x00002aaac6b7a7d2 in SwCrsrShell::ChgCurrPam (this=0x2e0aab0, rPt=Point = {...}, bTstOnly=true, bTstHit=false)
    at /home/julien/compile-libreoffice/libreoffice/sw/source/core/crsr/crsrsh.cxx:972
#14 0x00002aaac7825b26 in SwWrtShell::SetCrsr (this=0x2e0aab0, pPt=0x2e0adf8, bTextOnly=true)
    at /home/julien/compile-libreoffice/libreoffice/sw/source/uibase/wrtsh/select.cxx:299
#15 0x00002aaac7821ed6 in SwWrtShell::PushCrsr (this=0x2e0aab0, lOffset=8544, bSelect=false)
    at /home/julien/compile-libreoffice/libreoffice/sw/source/uibase/wrtsh/move.cxx:449
#16 0x00002aaac7822360 in SwWrtShell::PageCrsr (this=0x2e0aab0, lOffset=8544, bSelect=false)
    at /home/julien/compile-libreoffice/libreoffice/sw/source/uibase/wrtsh/move.cxx:561
#17 0x00002aaac777894b in SwView::PageDownCrsr (this=0x31474c0, bSelect=false) at /home/julien/compile-libreoffice/libreoffice/sw/source/uibase/uiview/viewport.cxx:653
#18 0x00002aaac7761b4d in SwView::Execute (this=0x31474c0, rReq=...) at /home/julien/compile-libreoffice/libreoffice/sw/source/uibase/uiview/view2.cxx:565
#19 0x00002aaac775caf9 in SfxStubSwViewExecute (pShell=0x31474c0, rReq=...) at /home/julien/compile-libreoffice/libreoffice/workdir/SdiTarget/sw/sdi/swslots.hxx:12788
#20 0x00002aaaae1af9c6 in SfxShell::CallExec (this=0x31474c0, pFunc=0x2aaac775cad6 <SfxStubSwViewExecute(SfxShell*, SfxRequest&)>, rReq=...)
    at /home/julien/compile-libreoffice/libreoffice/include/sfx2/shell.hxx:209
#21 0x00002aaaae1a724a in SfxDispatcher::Call_Impl (this=0x3102540, rShell=..., rSlot=..., rReq=..., bRecord=true)
    at /home/julien/compile-libreoffice/libreoffice/sfx2/source/control/dispatch.cxx:260
#22 0x00002aaaae1aa0b8 in SfxDispatcher::_Execute (this=0x3102540, rShell=..., rSlot=..., rReq=..., eCallMode=RECORD)
    at /home/julien/compile-libreoffice/libreoffice/sfx2/source/control/dispatch.cxx:862
#23 0x00002aaaae197261 in SfxBindings::Execute_Impl (this=0x4765ba0, aReq=..., pSlot=0x2aaac8351878 <aSwViewSlots_Impl+14456>, pShell=0x31474c0)
    at /home/julien/compile-libreoffice/libreoffice/sfx2/source/control/bindings.cxx:1204