Hi there and thank you for posting this question.
iOs Yosemite is not yet supported for ActivInspire, that is why you are seeing this problem.
You should be fine using ClassFlow from the website without using ActivInspire though.
I have logged your question under reference 00463928.
- Release notes for ActivInspire v2.21 (released 5 January 2021)
- Release notes for ActivPanel Elements Series v4.3.0 (released 16 December 2020) and v4.3.1 (released 7 January 2021)
- Release notes for myPromethean portal v1.4 (released 2 December 2020)
- Release notes for ActivConnect OPS-G v2.4.4 (released 16 October 2020)
- Release Notes for ActivPanel Elements Series v4.2.0 (released 30 September 2020)