excel 365 validation bug?

the code below is running well in excel 2010 but produces error in excel 365 version 1902?

here the code example:

Please Login or Register  to view this content.

(if "content" gets bigger then 255 chars the code results with an error???)

The same code runs perfectly in Excel 2010!

Administrative Note:

Welcome to the forum.

We would very much like to help you with your query, however you need to include code tags around your code.

Please take a moment to add the tags. Posting code between [CODE]Please [url=https://www.excelforum.com/login.php]Login or Register [/url] to view this content.[/CODE] tags makes your code much easier to read and copy for testing, and it also maintains VBA formatting.

Click on Edit to open your thread, then highlight your code and click the # icon at the top of your post window. More information about these and other tags can be found here

(Note: this change is not optional. As you are new here, I will do it for you this time.)

Originally Posted by Fluff13

It maybe that MS have now made it so that you cannot have a DV string longer than 255 to prevent that problem.

Yes, it seems it may have changed recently.