Event Clicked: UI crash, change order of CHANGE SCREEN and DELETE SCREEN and then it works

Bugs
1

If i have an Event for a button ‘CLICKED’ with the following ordering:
CHANGE SCREEN
DELETE SCREEN

UI will crash (and reboot) when button is pressed.

But if the order is flipped to:
DELETE SCREEN
CHANGE SCREEN

Everything is good, runs fine.

Squareline v1.6.0 - Using the free version.
Uploaded to a CrowlPanel 7"
Compiled with Arduino IDE v 2.3.8

If more info is needed, just ask…

And here the error from the serial output:

Guru Meditation Error: Core  1 panic'ed (LoadProhibited). Exception was unhandled.

Core  1 register dump:
PC      : 0x42008d01  PS      : 0x00060e30  A0      : 0x8200b966  A1      : 0x3fceba40  
A2      : 0x3fcf7780  A3      : 0x3fca3728  A4      : 0x00000000  A5      : 0x3fcebc44  
A6      : 0x00000007  A7      : 0x00000001  A8      : 0x82008d01  A9      : 0x3fceba20  
A10     : 0x00000000  A11     : 0x3fca5520  A12     : 0x00000000  A13     : 0x3fcee1d8  
A14     : 0x42003a50  A15     : 0x00000003  SAR     : 0x00000020  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x00000004  LBEG    : 0x4201f248  LEND    : 0x4201f2dc  LCOUNT  : 0x00000001  


Backtrace: 0x42008cfe:0x3fceba40 0x4200b963:0x3fceba60 0x4200beb5:0x3fceba90 0x4200c35f:0x3fcebab0 0x42008bcd:0x3fcebad0 0x42008c11:0x3fcebb00 0x42005527:0x3fcebb20 0x42002697:0x3fcebbe0 0x42002df9:0x3fcebc00 0x42005962:0x3fcebc20 0x420059be:0x3fcebc40 0x42005ece:0x3fcebc80 0x420064b4:0x3fcebca0 0x4201faf0:0x3fcebcf0 0x42002388:0x3fcebd20 0x4202cb3d:0x3fcebd40

ELF file SHA256: 9e104b7f93617ee5

Rebooting...

ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0xc (RTC_SW_CPU_RST),boot:0x8 (SPI_FAST_FLASH_BOOT)
Saved PC:0x4205539e
ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0x10 (RTCWDT_RTC_RST),boot:0x8 (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fce3808,len:0x4bc
load:0x403c9700,len:0xbd8
load:0x403cc700,len:0x2a0c
entry 0x403c98d0
E (277) gpio: gpio_set_level(227): GPIO output gpio_num error
E (278) gpio: gpio_set_level(227): GPIO output gpio_num error
E (288) gpio: gpio_set_level(227): GPIO output gpio_num error
E (289) gpio: gpio_set_level(227): GPIO output gpio_num error
E (294) gpio: gpio_set_level(227): GPIO output gpio_num error

Others

  • SquareLine Studio version: 1.6.0
  • Operating system: Windows
  • Target hardware: CrowlPanel 7in
2

Which screen are you on, which screen are you changing to, which screen are you deleting, which transition is used to change screen, and are any delays used?

3

Same scenario no matter what screen i was at, same setting for both orders:

So as an example:

On ‘screen one’.
Click button event as follow:
DELETE SCREEN - current ‘Screen One’
CHANGE SCREEN - ‘Screen Two’
“Fade Mode” = NONE
Duration= 0
Delay = 0

That worked fine.

With same settings but order flipped:
CHANGE SCREEN
DELETE SCREEN
crash

4

I’m not sure why, but SquareLine events run in reverse order. Ex: function call [F1, F2, F3], gets executed as [F3(), F2(), F1()]. @SquareLine_Support , have you guys noticed that?

I’m still surprised that’s crashing though. It should get run as “Change to Screen Two immediately, then Delete former Screen One” (this could be a problem with animations - you don’t want to delete screen one before you’re done using it, but that’s not happening here).

Have you tried marking Screen One as a temporary screen, so that SquareLine can manage the lifecycle? That’s worked well for me.