Construct 3 Crashing

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  • Hello there,

    I'm encountering an issue when attempting to load any of my layouts, and I receive the following error. I was unable to find the appropriate place to report a bug. Anyone know how to fix this. If this is not the place for these issues any assistance or guidance on where to submit this would be greatly appreciated.

    Error report information

    Type: assertion failure

    Message: overwriting layers bar item map entry

    Stack: Error at Do.cgi (https://editor.construct.net/r440-2/main.js:29:115674) at xh (https://editor.construct.net/r440-2/main.js:29:72295) at window.assert (https://editor.construct.net/r440-2/main.js:29:72498) at window.tIt.AIt (https://editor.construct.net/r440-2/components/bars/layersBar/layersBar.js:1:2196) at window.tIt.PIt (https://editor.construct.net/r440-2/components/bars/layersBar/layersBar.js:1:3689) at window.tIt.PIt (https://editor.construct.net/r440-2/components/bars/layersBar/layersBar.js:1:3880) at window.tIt.PIt (https://editor.construct.net/r440-2/components/bars/layersBar/layersBar.js:1:3920) at window.tIt.PIt (https://editor.construct.net/r440-2/components/bars/layersBar/layersBar.js:1:3964) at window.tIt.ua (https://editor.construct.net/r440-2/components/bars/layersBar/layersBar.js:1:3134) at window.tIt.LIt (https://editor.construct.net/r440-2/components/bars/layersBar/layersBar.js:1:2752)

    Construct version: r440.2

    URL: editor.construct.net

    Date: Thu Jun 05 2025 21:09:25 GMT-0400 (Eastern Daylight Time)

    Uptime: 80.4 s

    Platform information

    Product: Construct 3 r440.2 (stable)

    Browser: (unknown) (unknown)

    Browser engine: Chromium

    Context: browser

    Operating system: Windows 10

    Device type: desktop

    Device pixel ratio: 1

    Logical CPU cores: 12

    Approx. device memory: 8 GB

    User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36

    Language setting: en-US

    WebGL information

    Version string: WebGL 2.0 (OpenGL ES 3.0 Chromium)

    Numeric version: 2

    Supports NPOT textures: yes

    Supports GPU profiling: no

    Vendor: Google Inc. (NVIDIA)

    Renderer: ANGLE (NVIDIA, NVIDIA GeForce RTX 3060 Ti (0x00002489) Direct3D11 vs_5_0 ps_5_0, D3D11)

    Major performance caveat: no

    Maximum texture size: 16384

    Point size range: 1 to 1024

    Extensions: EXT_clip_control, EXT_color_buffer_float, EXT_color_buffer_half_float, EXT_conservative_depth, EXT_depth_clamp, EXT_disjoint_timer_query_webgl2, EXT_float_blend, EXT_polygon_offset_clamp, EXT_render_snorm, EXT_texture_compression_bptc, EXT_texture_compression_rgtc, EXT_texture_filter_anisotropic, EXT_texture_mirror_clamp_to_edge, EXT_texture_norm16, KHR_parallel_shader_compile, NV_shader_noperspective_interpolation, OES_draw_buffers_indexed, OES_sample_variables, OES_shader_multisample_interpolation, OES_texture_float_linear, OVR_multiview2, WEBGL_blend_func_extended, WEBGL_clip_cull_distance, WEBGL_compressed_texture_s3tc, WEBGL_compressed_texture_s3tc_srgb, WEBGL_debug_renderer_info, WEBGL_debug_shaders, WEBGL_lose_context, WEBGL_multi_draw, WEBGL_polygon_mode, WEBGL_provoking_vertex, WEBGL_stencil_texturing

  • For anyone encountering this issue, I discovered that a specific layer was causing the problem. I believe this may be a bug in Construct. However, if you can identify the rogue layer, you might be able to resolve it.

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  • Would be good if you can post your project in the bugtracker.

    github.com/Scirra/Construct-bugs

    You can probably remove everything except the bugged layer that's causing the problem.

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