Any Problems with AEGIS THEME and latest WP 5.5 Upgrade?

Just updated new WP 5.5 and original Aegis Theme not working, in particular, “Appearance” changes not saving and drop-down menu selections not selecting to save.
Any ideas as to why and how to fix please?

I have emailed the author but no reply as yet.

Thanks

Hi @sapphire101,
have you already solved your problem?

No. I received no response from the Aegis Theme creator although I emailed him directly. There has been no updates to the theme since V1 from what I can see and there needs to be more quality control from your end so creators are pushed to update what you are selling.

I have had to purchase another theme and have all files transferred at considerable expense and time.