PaperSpigot Errors/Crashes on Startup

[BetaBurnt]

Description

From Paper 1.15.2 build #211 and up there are a lot of errors given when my scripts start loading in, they take a lot longer to load and often cause crashes (but not always...? so the server does sometimes end up coming online anyway...)

If I backdate to PaperSpigot #209 everything loads as normal, same scripts same Skript version (2.5alpha3 - was 2.4.1 but updated to test and they both do the same thing).
Any PaperSpigot build from 211 to the latest (#240 at this time) have this issue.

Switching to the latest Spigot 1.15.2 build at this time also stops this happening, so the issue is present only on the newer Paper builds specifically, but as all the errors are from Skript and removing Skript stops any of the problems I figured it's not specifically a Paper issue...?

Steps to Reproduce

Install the latest Skript alpha, using the latest PaperSpigot and start adding in a lot of scripts until this triggers.

To confirm - I did test with no scripts, everything is then fine, but I cannot find a specific script or scripts that trigger this. I've tried adding them back in one at a time till it started but then if I remove them all again and start with the script that triggered it the first time... it's all fine and I can keep adding them back in and then at some random point this starts again.

Expected Behavior

Log from running the same setup on PaperSpigot #209 - https://pastebin.com/wX5rCZXw
That would be the expected behaviour.

Errors / Screenshots

Logs from the same setup on PaperSpigot #211 are in the file linked here as it was too big to pastebin: https://www.dropbox.com/s/owvep8fc50sa6hl/paper211.log?dl=0

Server Information

• Server version/platform: PaperSpigot, versions as above
• Skript version: Skript 2.4.1 or 2.5alpha3

[BetaBurnt]

This was also reported to Paper but they obviously are just going to say it's a Skript issue and you need to fix it...

The report on their end with their replies - PaperMC/Paper#3294

[BetaBurnt]

Duplicate of #2945