I've seen this with some odd HDMI issues. The usual fixes are and to be clear not always a sure thing:

1. Unplug one end of each HDMI cable. Remove power from ALL gear that has HDMI ports. Wait about 10 minutes. Plug it all in, power up and test.
Why this works. Turns out some HDMI chipsets don't really have a good reset so when they get into "HDMI HANDSHAKE ISSUES" this can clear that up.

Also worth noting is that some owners will not accept this fix. Defer to the makers and mention they will be returning gear if they feel this is a product defect.

2. Replace all the HDMI cables with your favorite brand. Here that's the AmazonBasics cables.