Grid lines jump around and won't stay where they are left

Question:
When I try to drag on grid lines in Customize grid on canvas they just jump around and won’t stay where I left them. I’ve tried refreshing the screen and also deleting all the rows in the section and trying again, but it won’t stop doing it.

Youtube video: https://youtu.be/bcjtpfWNsPY

Product:
[Which editor or feature is your question most relevant to? e.g. Wix Studio]

UPDATED: So this one turned out to be a browser caching issue, using incognito or clearing browser cache fixed it.