TFT35 - ACK Timed Out. Pending GCODE Released

[KingKappa101]

Hello to the forum members. I've connected a TFT35 V3.0.1 to a SKR1.4Turbo via the RS232 cable. On the testing of my first extruder, all appears ok. (it extrudes E0) and also unloads. When attempting testing the second extruder (E1) I receive the following error on the TFT35 ACK timed out. Pending gcode released.

Same happens if I swap the extruder cables - so the steppers are ok. On pressing ok the error returns continually. On viewing the error on the TFT35 i view the following (see second image attached). The scan rate also slowly increments. Firmware version currently in use for the TFT35 is BIGTREE_GD_TFT35_V3.0_B1.28.x

Any assistance appreciated. Can a modification be done to the TFT35 config.ini to work around this issue or should I be looking at Marlin options in the SKR1.4 board firmware to get around this in VSCODE CONFIG.h or CONFIG.ADV.h Thanks for listening.

[KingKappa101]

Hello - A followup. Rebuilt firmware with Marlin-bugfix-2.1.x 6. GD chipset on TFT35 - Upgraded firmware to BIGTREE_GD_TFT35_V3.0_B1.28. Modified config.ini to tx_slots:4 (may or may not of been required) Done.

Cheers KingKappa101