Open Minectaft → Select new version (26.2) → Launch Minectaft-> Click Singleplayer-> Load any world at version 26.2 → Click ESC → Open Lan → Click Cheats ON → Click on Lan: ON → Gamemode: Creative → Apply Changes → And now try F4+ F3 if doesnt work → Try /gamemode (anygamemode)
Azurixion
Step-By-Step:
Open Minectaft → Select new version (26.2) → Launch Minectaft-> Click Singleplayer-> Load any world at version 26.2 → Click ESC → Open Lan → Click Cheats ON → Click on Lan: ON → Gamemode: Creative → Apply Changes → And now try F4+ F3 if doesnt work → Try /gamemode (anygamemode)