Wrong symbol shown in tiles when using nonstandard letters

[Venera3]

Describe the bug

Defining nonstandard symbols for monsters causes the wrong symbol to be used in the tileset.

Steps to reproduce

1. Change a monster's symbol to "ä" or "ö"
2. Spawn the monster (note the correct symbol in the spawn menu)
3. Behold getting chased around by a "Σ" or "÷" respectively
4. (optional) Try to get cheeky and set "Σ"
5. Behold the missing tile ?

Expected behavior

The correct symbol tile being used.

Screenshots

No response

Versions and configuration

• OS: Windows
  • OS Version: 10.0.19044.1766 (21H2)
• Game Version: 0.F-10022-gba99b4bda6 [64-bit]
• Graphics Version: Tiles
• Game Language: English [en]
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food],
  No Fungal Growth [no_fungal_growth],
  Bionic Professions [package_bionic_professions]
  ]

Additional context

Tested on Ultica, MSXOtto+ and ASCIITiles

[github-actions]

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