Update 29 October: the reporter confirmed both springs work and both ledges are reachable after installing this test and importing the prior ROM/save. Issue #480 is closed. This confirms the tested Android route; it does not certify all layouts/devices. The original APK, checksums and build-time manifests are unchanged.
Android test for #480, USA ROM only, ARMv7 + ARM64. Installs separately as ReKHCoM OptiPort. Follow README.txt to import your own ROM and the save into the test app; keep the normal app installed.
Initializes the flat spring object height before visibility/collider checks. Recycled work could otherwise disable a visible spring. Original jump heights, orientations and terrain rules are preserved. The other map-object callers of the same culling routine already initialize their heights.
The failure mechanism has a CPU RED/GREEN regression and a real-game recycled-memory RED/GREEN control with the supplied save. Both clean Windows32/64 spring paths pass. The closed APK signature, compiled Java entry, both ABIs, USA guest and214assets pass static package checks. Installation and the reported Android flow still need physical confirmation, so #480 remains open. This is a targeted candidate, not confirmation that all layer symptoms share this cause.
Source602de3736694513a21acbf436dc7f8753efb324c, integrated by PR484 as3d2b30b745e6520f6ebb5886d842681e1c1b7d15. Stable v2.2.5 remains unchanged.