Hi Ronnie,
Thank you for flagging this to me, by chance are you using Classic editor? I have now added in the correct hooks for classic editor fields for backwards compatibility this was primarily made for lightweight block theme setups first and I am expanding it as we get more people like yourself using it!
Once again thank you for flagging this to me and if you are interested in our other plugin Siteward please message me directly and I can sort out a discount for your help on this as this plugin is entirely free I cannot offer more than my thanks here. The latest version is rolled out and going through WP.org verification but you can also download it directly from the website eventward.omniswp.com.
Cheers,
Jason
