Please post your very own problem. That would be better. Now that the OP has flagged this post as solved, many will not be noticing your problem inside of it.
When you do, include what steps you are taking to accomplish the export
Also include your Sys Info as LrC reports it (in LrC, click on Help, click on System Info, click on Paste, paste in everything from first line down to and including plugin info. do not include junk after plugin info)
Just another Adobe customer; My Sys; APP: LRC 10.0, PS 22.0; CMP: WIN WS 16GB OS 10 v1909 (18363), mid 2015 MBPr 15” 16GB MACOS 10.15.7; 4K EXT DSPY; CAM: Canon 5D Mk III, Fuji X-T3