Data Tables vanish in the browser


I‘m currently building a application with multiple data tables. At first they showed up as they should. After some time and no changes to the code the text in the tables disappeared. After a restart of the application, the complete table was gone (borders, headers, …).
After deleting the cache of the browser and restarting the computer the tables came back. But after some time they where gone again. Not only on this computer but also on another machine. Once again now changes where made to the code. The measures taken before didn‘t worked this time.
The strange part is, that on a third machine everything works as it should.

Have those problems already occurred to somebody in the community? What could be a solution?

Thanks in advance