Screen stuck in "Loading issues..."

Summary

Excel-like Issue Editor doesn't work and stuck on the page loading issues.

Answer 

It could be due to some reasons.
We have known problems about loading Excel-like Issue Editor with 3rd party apps or scripts as follows:

• draw.io Diagrams for Jira

• Asset Tracker for Jira-Asset Management

• Announcement banner

• Issue Collector

It seems like there is a conflict with javascript library, but It’s challenging for us to analyze the root cause and find a workaround about this matter.
If you encounter a similar problem in loading Excel-like Issue Editor, could you please raise a support ticket here.