[WIP] PR: Prevent mixing masked array and 3D array support

[dalthviz]

Description of Changes

• [ ] Wrote at least one-line docstrings (for any new functions)
• [ ] Added unit test(s) covering the changes (if testable)

• [ ] Included a screenshot or animation (if affecting the UI, see Licecap)

Currently support for 3D arrays and masked arrays is available but it not possible to show both aspects at the same time (support for 3D masked arrays is missing)

Issue(s) Resolved

Fixes #16796

Affirmation

By submitting this Pull Request or typing my (user)name below, I affirm the Developer Certificate of Origin with respect to all commits and content included in this PR, and understand I am releasing the same under Spyder's MIT (Expat) license.

I certify the above statement is true and correct: dalthviz