Hangup on "Loading Default Resource Pack" 1.21.7 Snapshot #4230

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Issue Description:

Dynmap gets stuck on "loading default resource pack" on startup, stopping the server from starting

• Dynmap Version: 3.7 Snapshot
• Server Version: Paper 1.21.7 build 15
• Pastebin of Configuration.txt: https://pastebin.com/CWbNUeKC
• Server Host (if applicable): EnviroMC
• Other Relevant Data/Screenshots: I am using a server resource pack
• Steps to Replicate: Try starting the server

[ x] I have looked at all other issues and this is not a duplicate
[ x] I have been able to replicate this