RevK :verified_r:<p>That has been hard work.<br>Updated a project to <a href="https://toot.me.uk/tags/ESP32" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ESP32</span></a> <a href="https://toot.me.uk/tags/ESP_IDF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ESP_IDF</span></a> 5.1.<br>All went to shit.</p><p>Basically <a href="https://toot.me.uk/tags/FreeRTOS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeRTOS</span></a> failing allocs all over - creating tasks or semaphore, etc.</p><p>But even modules with PSRAM and over 2MB left are doing it. So has to be a different heap - where and how big?!</p><p>Finally managed to revert all to 5.0.1 and working at last.</p><p>But this is going to be a bugger to get my head round!</p>