Physarella oblonga slime mold.
yellow egg yolk like substance on dead wood. Next day it was all gone, but some tiny fruiting bodies were visible (from photo 7 onwards). Apparently fruits can be sessile or stalked as in the pictures.
Image #4: Myxospores
Image #5: Capillitium
—
Originally posted to Mushroom Observer on Mar. 2, 2021.