I am using SciChart trial version to create a a simple line chart but when running an application for a while, I got this error in the dev console log – not sure what the root cause is but it seems to come from SciChart library
We believe we have an answer for you but we need you to confirm if the machines having problems have Intel HD graphics adapters? If so, this could be a machine specific issue caused by Intel driver bug.
We had problems before with Intel HD GPUs also with WebGL context lost and Function Signature Mismatch. Here are some links to forum posts
from the Intel forums
Have same issue with SciChart.js
Had test with two pc.
No error with UHD 630 / v 22.214.171.12481.
Error with UHD 630 / v 126.96.36.19983.
v.8681 is released only 20 days earlier than v 8783.
Hope there’s any progress.
Using the latest version of the driver (188.8.131.524) this issue described above is not reproducible.
Unless there is an specific reason to use the v 184.108.40.20683, please upgrade to the latest.
Closing the topic
Our suggestion is to check the machines having problems, check if they have Intel graphics adapters and to check the driver versions. Ensure they are updated to the latest version (220.127.116.114 or later). This will resolve problems with WebGL on these machines.
Please let me know if the above helped
This looks like you have a mismatch between the SciChart.js library version and the version of the wasm (WebAssembly) file.
Have you recently updated SciChart? How are you referencing or installing the wasm file?
If you provide more info about how to reproduce this problem or a code sample, we will investigate
How can I check if the wasm file is incorrect version?
I recently did not update the SciChart. I use the wasm file from SciChart inside node_modules. Here is the script to copy wasm file from node_modules to ./src folder
The issue is not easy to replicate and it happened only on one of my colleague’s machine. Not sure if it is machine specific?
I can see lots of warning message before ‘Function or function signature mismatch’ error – see new attached screenshot
I will check with my colleague once he returns from vacation – next week.
I see one thing (weird?) where .wasm file is loaded twice – see attached. Not sure if this relates to the issue but just wanted to share.
My colleague is back!
The machine is having Intel(R) UHD Graphics 620 and the driver version is 18.104.22.16826
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