Wrong timecode to blame?

AME 22.2 Build 18

I'm still unable to complete an export of this footage. I get the following error:

Error completing render.

Writing with exporter: H.264
Writing to file: \\?\E:\Transfers\HollandFilms\Holland 16\Holland 16_14_Wau_Sept1963.mp4
Writing file type: H264
Around timecode: 04;28;08;14 - 04;28;09;14
Component: H.264 of type Exporter
Selector: 9
Error code: -2147483648

It progresses about halfway through the clip then errors out.

The file name (above) still has that \?\ in the filename which it should not have.

Also the timecode is wrong. This clip starts at 2:12:19;17 and ends at 2;30;46;01 on the timeline. Premier is updated to 22.2.0 Build 53.

Footage is 16FPS in a 30p timeline, so it is being time interpolated.

The thing is, it completed 12 renders of other clips (in a previous build) so it should work. There are no edits to the clip. It is AVI with MJPEG codec from a 16mm silent film transfer.  Now it can't complete a render of anything, even ones that it did earlier.