17.2: piped mask does not work as expected if at all

Piping a mask to the next node has worked a thousand times but now seems not to work as expected if at all.

Most frustrating is that the power window or the HSL/3D, etc., key selection matte may not appear at all in the receiving node. Or a solid color field may appear instead of the mask/matte selection. Or the expected mask might be made to suddenly appear if one disables the piped node and re-enables it. Or perhaps disconnecting and reconnecting the pipe works. But not always. No behavior is consistent.

Likewise, the node highlight feature, always helpful when dealing with masks and mattes, likewise shows baffling behavior.

And, FWIW, another unexpected behavior is that the matte view pane in the key options window no longer seems to show the entire mask/matte but seems to be zoomed in, showing only a portion of the mask/matte frame. Unusable.

Has something changed??? What am I missing???

Go ahead; tell me something obvious and dumb: I'm ready.

(Hardware shouldn’t be the problem: happily used this PC for Resolve for hundreds of hours for a couple of years: 12 Xeon cores, 48 gig ram, two or three SSDs, perhaps 40-50 TB of storage.)

Thanks, Mike

I tried everything I could to replicate your issues but cannot. I have never seen those problems in over 10 years of using Resolve. It may be something to do with your project or settings, but I'm only guessing. Can you post a link to a video that shows what's happening?