Sounds strange, and I have the same version Microsoft Windows [Versión 10.0.19045.5854]
By any chance do you have both v6.8.0 and new v7 beta running at the same time?
You can also try to replicate the issue under logging mode:
How to report bugs together with the Wappler debug log
Then you can search for the wappler.log file and upload it here on a zip file