After trying to compile a long file with LMTX (previously with MKIV all compiles perfectly), I get an error structures > bookmark: Referències structure > sectioning > chapter @ level 2 : 0.1 -> Referències publications > list > collecting entries using method 'global' and sort order 'default' pages > flushing realpage 296, userpage 294, subpage 296 structures > bookmark: Índex alfabètic structure > sectioning > chapter @ level 2 : 0.2 -> \headtext {index} pages > flushing realpage 297, userpage 295, subpage 297 structures > end of sectionblock 'backpart' close source > level 1, order 147, name './ng-exercicis.conTeXt' (\end occurred inside a group at level 8) 8:0: semisimple group entered at line 276: \begingroup 7:0: semisimple group entered at line 5: \begingroup 6:0: semisimple group entered at line 5: \begingroup 5:0: semisimple group entered at line 114: \begingroup 4:0: semisimple group entered at line 114: \begingroup 3:0: semisimple group entered at line 5: \begingroup 2:0: semisimple group entered at line 5: \begingroup 1:0: semisimple group entered at line 27: \begingroup 0:0: bottomlevel mkiv lua stats > used config file: selfautoparent:/texmf/web2c/texmfcnf.lua mkiv lua stats > used cache path: /home/xan/bin/context-current/tex/texmf-cache/luametatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e mkiv lua stats > resource resolver: loadtime 0.004 seconds, 0 scans with scantime 0.000 seconds, 0 shared scans, 240 found files, scanned paths: <none> mkiv lua stats > stored bytecode data: 512 modules (0.181 sec), 105 tables (0.010 sec), 617 chunks (0.191 sec) mkiv lua stats > traced context: maxstack: 1715, freed: 2, unreachable: 1713 mkiv lua stats > cleaned up reserved nodes: 85 nodes, 11 lists of 671 mkiv lua stats > node memory usage: 291 attribute, 62 dir, 91 glue, 3281 gluespec, 1 glyph, 1 hlist, 1 kern, 2 math, 645 mathspec, 4 penalty, 18 rule, 2 temp, 66305 whatsit mkiv lua stats > node list callback tasks: 16 unique task lists, 18 instances (re)created, 119367 calls mkiv lua stats > h-node processing time: 0.653 seconds including kernel mkiv lua stats > attribute processing time: 0.119 seconds front- and backend mkiv lua stats > driver time: 0.693 seconds mkiv lua stats > used backend: pdf mkiv lua stats > jobdata time: 0.054 seconds saving, 0.000 seconds loading mkiv lua stats > callbacks: file: 69204, saved: 309548, direct: 957, function: 244605, value: 7598, message: 0, bytecode: 617, late 0, total: 632529 (0 per page) mkiv lua stats > randomizer: initialized with value 0.45060333164985 mkiv lua stats > v-node processing time: 0.259 seconds mkiv lua stats > loaded tex modules: 4 requested, 1 found (*-tikz), 3 missing (*-pgfmat *-pgfmath *-pgfrcs) mkiv lua stats > loaded patterns: ca::65 en::1, load time: 0.000 mkiv lua stats > interactive elements: 74 references, 950 destinations mkiv lua stats > loaded fonts: 13 files: latinmodern-math.otf, lmmono10-regular.otf, lmroman10-bold.otf, lmroman10-italic.otf, lmroman10-regular.otf, lmromancaps10-regular.otf, lmromanslant10-regular.otf, lmsans10-bold.otf, lmsans10-boldoblique.otf, lmsans10-regular.otf, texgyreschola-bold.otf, texgyreschola-math.otf, texgyreschola-regular.otf mkiv lua stats > font engine: otf 3.133, afm 1.513, tfm 1.000, 68 instances, 51 shared in backend, 8 common vectors, 43 common hashes, load time 1.181 seconds mkiv lua stats > body font sizes: defined: 10pt 11pt 12pt 14.4pt 17.3pt 20.7pt 4pt 5pt 6pt 7pt 8pt 9pt, undefined: 11.2pt 12.8pt 14pt 16.8pt 16pt 19.2pt 24pt 30pt 36pt mkiv lua stats > metapost: 0.000 seconds, loading: 0.033, execution: 0.000, n: 3, average: 0.011, instances: 1, luacalls: 14196 (file: 13784, text: 0, script: 393, log: 19), memory: 3.881 M mkiv lua stats > math tweaking time: 0.474 seconds, 84 math goodie tables mkiv lua stats > math processing time: 0.292 seconds mkiv lua stats > graphics processing time: 1.768 seconds including tex, 268 processed images, 57 unique asked, 27 bad names mkiv lua stats > publications load time: 0.005 seconds, 2963 bytes, 11 definitions, 0 shortcuts mkiv lua stats > pdf annotations: 74 links (74 unique), 0 special mkiv lua stats > font embedding time: 0.018 seconds, 13 fonts mkiv lua stats > result saved in file: ng-exercicis.pdf, compresslevel 1, objectcompresslevel 3 mkiv lua stats > positions: 311 collected, 0 deltas, 307 shared partials, 133 partial entries mkiv lua stats > cross referencing: 713 identified, 269 unknown mkiv lua stats > used platform: linux-64, type: unix, binary subtree: texmf-linux-64 mkiv lua stats > used engine: luametatex version: 2.10.10, functionality level: 20230803, format id: 697, compiler: gcc mkiv lua stats > tex properties: 806417 hash slots used of 2097152, 70025 control sequences, approximate memory usage: 82 MB mkiv lua stats > lua properties: engine: lua 5.4, used memory: 213 MB, ctx: 198 MB, max: 306 MB, symbol mask: utf (τεχ) mkiv lua stats > runtime: 20.941 seconds, 297 processed pages, 297 shipped pages, 14.183 pages/second mtx-context | fatal error: return code: 1 but this not appear in .log file. What can I do for seeing what happens? Thanks in advance, Xavier PS: I could share my sourcecode with public git repo if you prefer.