Altiverb: "... is not a valid UnitValue"

[helgoboss]

Matthew reported this when using Altiverb.

Steps to reproduce.

Add Altiverb VST to a track
Open, close or move the gui in any way and the error appears

REAPER version: 7.24/x64
Module name: Helgobox
Module version: v2.16.10/x86_64 rev 910f67 (2024-09-28 09:53:27 UTC)
Module path: C:\Users\Matthew\AppData\Roaming\REAPER\UserPlugins\FX\helgobox-x64.dll
Module base address: 0x7ff943480000
Module size: 0x27f8000
Message: 449.5 is not a valid unit value
0: 0x7ff944b43a8b - VSTPluginMain
1: 0x7ff944b42972 - VSTPluginMain
2: 0x7ff944ab561b - VSTPluginMain
3: 0x7ff944d5f1db - cpp_to_rust_PCM_source_Extended
4: 0x7ff944d5efe6 - cpp_to_rust_PCM_source_Extended
5: 0x7ff944d5d0df - cpp_to_rust_PCM_source_Extended
6: 0x7ff944d5ebc6 - cpp_to_rust_PCM_source_Extended
7: 0x7ff945055984 - cpp_to_rust_PCM_source_Extended
8: 0x7ff944a7c3af - VSTPluginMain
9: 0x7ff943d8f1e1 - invoke_host
10: 0x7ff943868970 - <unknown>
11: 0x7ff9440af185 - VSTPluginMain
12: 0x7ff9440aed8b - VSTPluginMain
13: 0x7ff943f99b01 - VSTPluginMain
14: 0x7ff943f65563 - VSTPluginMain
15: 0x7ff943f58e7b - VSTPluginMain
16: 0x7ff9440c4550 - VSTPluginMain
17: 0x7ff944c1aecf - cpp_to_rust_PCM_source_Extended
18: 0x7ff944bfc1ef - cpp_to_rust_IReaperControlSurface_Run
19: 0x140338411 - <unknown>
20: 0x140207ea7 - <unknown>
21: 0x1402075ee - <unknown>
22: 0x140206dff - <unknown>
23: 0x1404c240f - <unknown>
24: 0x7ff9ea5e3170 - ScreenToClient
25: 0x7ff9ea5e2912 - ScreenToClient
26: 0x7ff9ea629ec9 - UnpackDDElParam
27: 0x7ff9ea5def5c - CallWindowProcW
28: 0x7ff9ea5de684 - DispatchMessageW
29: 0x1404b93f0 - <unknown>
30: 0x140ac8ae1 - <unknown>
31: 0x7ff9e93c7374 - BaseThreadInitThunk
32: 0x7ff9ea7fcc91 - RtlUserThreadStart
--- cut ---

[helgoboss]

Resolving to symbols on Windows doesn't yield usable results somehow ...