Files with incorrect tab characters usually triggers a warning, but these warnings begin piling up and consuming the editor space. Even after correcting the tab/space issues these messages remain. The only way to get them back down to one is to restart PhpStorm.
Hello @jbanahanbvm, could you please provide the version of IntelliJ you are using?
The issue was identified to be present in version 2024.1. We started a discussion with JetBrains which led to a fix on their side in the EAP version 2024.2 (starting from build IU-242.20224.91).