I have updated emacs to the latest version: GNU Emacs 30.1 (build 2, x86_64-w64-mingw32) of 2025-02-23 and org too: Org mode version 9.7.27
Customization says: Operate on all settings in this buffer: Hide Tab Width: Integer: 8 State : SAVED and set. I have tried many things, But I still get the error: Tab width in Org files must be 8, not 2....<snip>... Please report this to Org mode mailing list" Details: Org parser error in aaa-current.org::534. Resetting. The error was: (error "Tab width in Org files must be 8, not 2. Please adjust your ‘tab-width’ settings for Org mode") Backtrace: " backtrace-to-string(nil) org-element-at-point() org-at-item-p() org-cycle-item-indentation() org-cycle(nil) funcall-interactively(org-cycle nil) command-execute(org-cycle) recursive-edit() debug(error (error \"Tab width in Org files must be 8, not 2. Please adjust your ‘tab-width’ settings for Org mode\")) error(\"Tab width in Org files must be 8, not %d. Please adjust your `tab-width' settings for Org mode\" 2) org-element--list-struct(210) #f(compiled-function (limit &optional granularity mode structure) \"Parse the element starting at point.\\n\\nReturn value is a list like (TYPE PROPS) where TYPE is the type\\nof the element and PROPS a plist of properties associated to the\\nelement.\\n\\nPossible types are defined in `org-element-all-elements'.\\n\\nLIMIT bounds the search.\\n\\nOptional argument GRANULARITY determines the depth of the\\nrecursion. Allowed values are `headline', `greater-element',\\n`element', `object' or nil. When it is broader than `object' (or\\nnil), secondary values will not be parsed, since they only\\ncontain objects.\\n\\nOptional argument MODE, when non-nil, can be either\\n`first-section', `item', `node-property', `planning',\\n`property-drawer', `section', `table-row', or `top-comment'.\\n\\n\\nIf STRUCTURE isn't provided but MODE is set to `item', it will be\\ncomputed.\\n\\nThis function assumes point is always at the beginning of the\\nelement it has to parse.\" #<bytecode 0x507254b21c37749>)(210 element planning nil) org-element--parse-to(209) org-element-at-point() org-at-item-p() org-cycle-item-indentation() org-cycle(nil) funcall-interactively(org-cycle nil) command-execute(org-cycle) " Please report this to Org mode mailing list (M-x org-submit-bug-report). Best, Jorge Cuellar