Brief summary of issue

The Settings->Mapper->Download button is crashing Mudlet. This also happens with brand new profiles for StickMUD as soon as someone joins the game. StickMUD uses the IRE Mapper.

Steps to reproduce the issue / Reasons for adding feature:

1. Logon to StickMUD for the first time (MacOS may be required, not sure)
2. Allow the map to be downloaded

OR

1. Logon to StickMUD (MacOS may be required, not sure)
2. Open Settings, Mapper
3. Click Download

Error output / Expected result of feature

macos_crasher_4dot9_download_map_upon_login.txt

macos_crasher_4dot9_download_map.txt

Extra information, such as Mudlet version, operating system and ideas for how to solve / implement:

Mudlet version: 4.9
OS: Most recent MacOS