[SOLVED] v8.0.3 Changing status with button causes extreme long loading times

hi,
i deleted the browser cache via options - for now i did it again and also deleted the app_data - internet explorer cache folder.

but the same error appears.

attached you find the logs reduced to the errors since i logged in. at this point the loading dots/circle appears until i close the browser.

thank you for your help

short addition. i guess i made a mistake yesterday and uses the admin account on firefox. others than reportet has the administrator the same issue and after saving an item the loading circle-dots appears for an unlimited time.

it seems that he tries to update the mask. i tried to figure out what can cause the issue, i checked the error log and compare the code and it is no "easy" issue visible.

i try to log the firefox and look if has similar messages.

update 2:
error appears _only_ in internet explorer. Firefox, Opera, Vivaldi and Even Edge is working fine without any given error.

here is the last log, it seem it has a little more details

with 8.0.4 (installed in our dev-environment) problem seems to be solved.