Describe the bug
DISPLAYING doesnt work for meta actions such as BOTH or EITHER.
the tsl script is following (copied from the wiki):

EITHER
DROP apple DISPLAYING %["Here comes apple!"]%
OR
DROP stick DISPLAYING %["Here comes stick!"]%
OR
NOTHING DISPLAYING %["What a pity! No reward for you."]
ON Twitch Subscription%

and produces this: https://imgur.com/7q79qd7

if e.g. only doing it like this:

DROP apple DISPLAYING %["Here comes apple!"]
ON Twitch Subscription%

it shows the message properly.

Version (please complete the following information):

• OS: MAC
• TwitchSpawn Version: 0.4.9
• Forge Version: 1.12.2-14.23.5.2847

It is now fixed with 07a2763. Thanks once again for letting me know! It will be published with the next build within a few days. 🎉