Trying to Maintain Accurate GPS tags on my Theta Z photos

I have experienced several days recently (June of 2020) when my Theta Z initially takes photos with correct, accurate GPS tags and then, (after taking about 39 photos) begins to have subsequent photos tagged with incorrect GPS tag.

Today, the first 39 photos I took had correct, accurate GPS tags. The next 76 photos I took were tagged with the GPS coordinates from photo number 39. The final 22 photos of the morning has no GPS tag information at all.

Has anybody else experienced this or can suggest what I can do to keep accurate GPS tags on all photos?