• Mamp Pro 4

Since upgrading from MAMP 5.5 to 6.0.1 I am having intermittent 'Internal Server Error' responses with a 500 return code.
These seem to be when the server has a lot of work to do so after clearing the cache for example or clearing the compiled content, when I refresh the same page then it completes without error. I have checked the apache, PHP and MySQL logs and there are no errors corresponding with the times the issues occur.

MAMP MAMP PRO 4.1.1.18927File Size: 452 MiBMAMP PRO is the commercial, professional grade version of the classic local server environment for MAMP. Designed for professional Web developers and programmers, MAMP Pro allows easy installation and administration of their development environment.As a. Synonym: Anti-Membrane-bound APP, Anti-Membrane-bound AmP, Anti-Membrane-bound aminopeptidase P, Anti-X-Pro aminopeptidase 2, Anti-Xaa-Pro aminopeptidase 2, Anti-mAmP Product # Clonality.

I have my php.ini set to use 'unlimited' memory (memory_limit = -1) so that is not the limitation, but it feels like I am hitting some other limitation which is causing an issue without throwing an error, has anybody else come across this or know of a way to increase the logging in MAMP so I can debug this issue, because at the moment I am stumped.
For reference I am running on Mac Catalina 10.15.7 and the site I am running is a Magento 2.3 build running on PHP 7.2.33 with Apache.

Mamp Pro 4

Loom video showing the issue, 500 on first attempt, page loads successfully on second attempt, the same can pretty much be repeated on all pages across the site after a cache clean.