Random text appears in the filename field when editing filenames during Save As
1. ID 14.0.1, OS 10.14.2
2. Save as. When dialog appears, filename is highlighted so that it can be edited. Use RIght arrow key to put cursor at end of filename to append text.
3. Expected result, which occurs about 90% of the time, is that the cursor moves to the end of the filename and you can enter text.
4. Actual result, about 10% of the time, is that pressing the Right arrow key erases the entire filename in the field and replaces it with the words "Adobe Stock".
(Another version of this error occurs in the exact same scenario with Illustration 2019, except in that program the filename is replaced with a bunch of svg code instead).
C W commented
I should mention that I don't _use_ Adobe Stock, have not visited it, and those words are _not_ in pasteboard memory.