Hi,
The leading candidate for the problem is a plugin conflict of some sort; but to investigate that, we need to confirm whether it is so, or not. If we find out which plugin it is a conflict with, we can then investigate that plugin to see what can be done about. To proceed further with the investigation, we need you to temporarily, for testing purposes, deactivate all other plugins, reload the page, and see if the problem is still there or not. You can then immediately re-activate all the plugins after doing the test.
@bcrodua @vupdraft If it is a plugin conflict, please open a card in the system linking to this. If not, message me internally.
David