Motion Tools Pro works with the 2020(>17.5) version of After Effects and newer.
If you notice a black screen, your AE is likely outdated. The earliest versions of 2020 AE, such as 17.0.0, do not work. Try to update to the most recent version as possible.
If you notices such compatible message in the ZXP installer, try to enable “Install for the current user only” in the settings.
If updating to the new version does not solve the problem and you have used an older version of MTP before, a version conflict may cause the issue.
MTP's data for its operations are located on different paths depending on your operating system. To reset the extension, try to back up this folder and remove the entire "Motion Tools Pro folder.
Windows
C:\\Users\\<user>\\AppData\\Roaming\\MDS\\Motion Tools Pro\\
MacOS
/Users/<user>/Library/Application Support/MDS/Motion Tools Pro/
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❗ Choosing this option will delete all MTP data, including user scripts and extension styling. If you need assistance in resolving this issue while preserving all your settings, please make a ZIP archive of the Motion Tools Pro folder and send it to our support team.
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In some cases, resetting preferences in the ZXP installer can help.
Usually, if an extension encounters a critical error, it may crash. However, there is a way to run an extension even with errors. You can enable debug mode for Adobe software. The easiest way to do this is to activate it in the ZXP Installer settings.