If you are trying to generate subtitles and the auto subtitle option is greyed out, it's most likely because you have already created text blocks and generated audio with Genny's AI voice feature.
If you have created text blocks for your project, you will need to select TTS to Subtitles instead of Auto Subtitles. This option will still automatically generate subtitles for you based on your text blocks.
Auto Subtitles
The Auto Subtitles option is for audio/video files to subtitles (without text to speech already generated.) This means that Auto Subtitles is only available when you upload a video file that contains audio that can be transcribed to subtitles (text).
Textblock to Subtitles
The Textblock to Subtitles option is for turning textblocks into subtitles. If you have used Genny's voice feature to create your voiceover for your project, then you will need to use this option. The subtitles will be generated based on the text blocks in your project.