This problem does not occur on Firefox. We have reproduced with 4000 files. When you would like to display this directory in Projects > Components UI, browser starts to display the content then hang and stay stuck during at least 1 hour.
This issue has been confirmed on Chrome, Safari with COBOL and SQL
How to reproduce ?
Create a simple project containing 4000 sql files and analyse it.
Go in Projects > [Your Project] > Components